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EK-TUA81-SV-003
October 1985
192 pages
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Document:
TU81/TA81 Pathfinder
Order Number:
EK-TUA81-SV
Revision:
003
Pages:
192
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EK-TUA81-SV-003 TU81/TA81 Pathfinder EK-TUA81-SV-003 PRE-SITE ACTIONS ON-SITE ACTIONS I I TU81/TA81 Pathfinder TROUBLESHOOTING DIAGNOSTICS DIAGNOSTIC TEST INFORMATION Prepared by Educational Services of Digital Equipment Corporation I I 1st Edition, October 1984 2nd Edition, September 1985 Copyright © 1984, 1985 by Digital Equipment Corporation All Rights Reserved. Printed in U.S.A. The reproduction of this material, in part or whole, is strictly prohibited. For copy information, contact the Educational Services Department, Digital Equipment Corporation, Maynard, Massachusetts, 01754. The information in this document is subject to change without notice. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. The following are trademarks of Maynard, Massachusetts. mamaa.D™ DEC DECmate DECUS DECwriter DIBOL MASSBUS PDP PIOS Professional Digital Rainbow RSTS RSX RT UNIBUS Equipment Corporation, VAX VMS VT Work Processor TABLE OF CONTENTS PARAGRAPH TITLE PAGE Section 1 - TROUBLESHOOTING 1.1 GENERAL DESCRIPTION 1-1 1.2 1.2.1 1.2.1.1 1.2.1.2 1.2.1.3 1.2.2 FIELD SERVICE PROCEDURES Pre-Site Actions Malfunction/Failing Assembly Tables Test 02 Follow-Up Test 03 Follow-Up On-Site Actions 1-2 1-3 1-3 1-7 1-9 1-13 1.3 1.3.1 1.3.1.1 1.3.1.2 1.3.2 1.3.2.1 1.3.2.2 1.3.2.3 DIAGNOSTIC TESTS Operator Tests Operator Diagnostic (Test 01) Unit Identification (Test 04) Field Service Diagnostic Tests Initiating Field Service Diagnostic Tests Field Service Special Load/Unload Procedures Sub-Fault Codes 1-13 1-15 1-16 1-17 1-17 1-18 1-19 1=19 1.4 KEY TO FAULT CODE TROUBLESHOOTING PROCEDURES 1-19 1.5 SUB-FAULT CODE INTERPRETATION 1-21 1.6 TROUBLESHOOTING DIAGRAMS 1-22 Section 2 - DIAGNOSTIC TEST INFORMATION 2.1 SCOPE 2-1 2.2 DIAGNOSTIC TEST OPTIONS 2-1 2.3 DIAGNOSTIC TEST DESCRIPTIONS 2-5 iii LIST OF TABLES NO. TITLE PAGE 1-1 1-2 Malfunction/Failing Assembly Matrix Fault Code Matrix (Operator Test 01) 1-4 1-5 1-3 Test 02 Termination Codes Following Test 01 Fault Code 22 Test 02 Termination Codes Following Test 01 Fault Code 24 Test 02 Termination Codes Following Test 01 Fault Code 26 Tes t 02 Termination Codes Following Test 01 Fault Code 30, 31 , OR 36 1-4 1-5 1-°6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 Test 03 Termination Codes Following Test 01 Fault Code 03 Test 03 Termination Codes Following Test 01 fault Code 25 Test 03 Termination Codes Following Test 01 Fault Code 0'4, 06, or 36 Test 03 Termination Codes Following Test 01 Fault Code 32 Test 03 Termination Codes Following Test 01 Fault Code 33 or 35 Test 03 Termination Codes Following Test 01 Fault Code 48 Test 03 Termination Codes Following Test 01 Fault Code 52 Test 03 Termination Codes Following Test 01 Fault Code 30 or 31 1-7 1-7 1-8 1-8 1-9 1-9 1-10 1-10 1-11 1-11 1-12 1-12 LIST OF ILLUSTRATIONS 1-1 On-Site Troubleshooting Flowchart 1-14 1-2 Key To Fault Code Troubleshooting Procedure 1-20 1-3 Sub-Fault Code Interpretation - Example 1 1-21 1-4 Sub-Fault Code Interpretation - Example 2 -1-22 iv Section 1 - TROUBLESHOOTING 1.1 GENERAL DESCRIPTION The TU8l/TA8l Subsystem contains a broad range of microdiagnostics to monitor the operation of the subsystem. When these microdiagnostics detect fault conditions a numerical fault code is reported via the 3-digit display on the control panel. Fault detection and reporting occur from the time the subsystem is powered on through the normal on-line operation or off-line diagnostic testing. Three general types of conditions are tested: 1. 2. 3. Tape Motion Faults . Internal Control Operational Faults Human and System Interface Faults This manual is divided into two sections. Section 1 contains descriptions and procedures for troubleshooting the TU81/TA81 Subsystem. Section 2 contains descriptions of the diagnostic tests. To facilitate use of the manual, four of the most frequently used topics in the manual have been identified at the page edges with a black rectangle. The marked sections are: 1. 2. 3. 4. Pre-Site Actions On-Site Actions Troubleshooting Diagrams Diagnostic Test Information NOTES 1 .L. The procedures contained in this section of the manual are intended for use by a qualified field service representative familiar with operation of the TU8l/TA8l Subsystem. Under no eire urns tances should these procedures be performed by persons other than fully qualified maintenance personnel. 2. In this manual, the description of the operator diagnostic procedure is expanded for use by maintenance personnel. Procedures for use by the operator are in the CUSTOMER DIAGNOSTICS sectIon of the TUa1/TAB1 Subsystem User Guide. 1-1 I The diagnostic tests designed into the TU81/TA8l are functions t. h.'f tea n be in i t i ate d t h r 0 u gh the 0 per a tor con t r 01 pan e 1 or on-line by the host. The host controller is capable of monitoring TU8l/TA8l status through the STATUS TRANSFER command. A CHANNEL LOOPBACK command is also provided to exercise the interface logic. Even when not running diagnostics, the microprocessor tests for many operational fault conditions while operating on-line. These conditions are indicated as fault codes, appearing on the control panel display. The fault condition is indicated by lighting of the RESET/FAULT indicator and display of the appropriate fault code. Faults which occur while tape is loaded may initiate a controlled removal by the microprocessor of servo and write circuitry power to prevent tape damage. ~Jh en the TM SCP con t roll e r de tee t s a fat ale r r 0 reo n d i t ion, i t enables the CONTR FAULT indicator/switch and stays in the same state. When the CONTR FAULT indicator/switch is pressed, the controller enters the available state. The controller attempts to clear the error upon receipt of an INIT from the system. If the error is cleared, the controller disables the CONTR FAULT indicator/switch and enters the ON-LINE state relative to the system. If the error is not cleared, the TMSCP controller enters the fatal error condition state with the CONTR FAULT indicator /swi tch enabled. No error code is displayed on the front panel. 1.2 FIELD SERVICE PROCEDURES Trouble analysis procedures by the field service representative consist of a pre-site determination of the reported problem, and an on-site procedure to isolate and correct verified faults. Figure 1-1 depicts a troubleshooting flowchart to aid fault isolation. 1-2 1.2.1 When the follows: Pre-Site Actions trouble call is received from the sit e , proceed as 1. Consult the matrices in Tables 1-1 and 1-2 to determine if operator action is required. Specific malfunctions or fault codes indicate the need for operator action in the form of visual checks, cleaning, or performing Operator Diagnostic Test 01. It should also be verified that Operator Diagnostic Test 01 has been performed after the operator corrective actions have been completed. 2. After verifying that the fault still occurs follotving completion of all operator actions, consult Table 1-1 or Table 1-2 for a list of assemblies related to the reported malfunction or fault code. As many of these assemblies as are available should be taken to the site to prevent unnecessary call-backs. 1.2.1.1 Malfunction/Failing Assembly Tables The matrices in Tables 1-1 and 1-2 list malfunctions or fault codes and the possible assemblies which may cause the fault condition. The purpose of these tables is to provide you with a list of fault-related assemblies prior to reporting to the customer site. Assemblies listed under the individual malfunction or fault codes are arranged in a "most probable fault" order. In addition to the assemblies listed, the table may direct you to request the operator to perform Diagnostic Test 02 or 03. Test 02 is required if Fault Codes 22, 24, 26, 30, 31 or 36 terminate Diagnostic Test 01. Tables 1-3 thru 1-6 list possible failing assemblies for fault codes which terminate Diagnostic Test 02. Test 03 is required if Fault Codes 03, 04, 06, 25, 30, 31, 32, 33, 35, 36, 48, or 52 terminate Operator Diagnostic Test 01. Tables 1-7 thru 1-14 list possible failing assemblies for fault codes which terminate Diagnostic Test 03. Also contained on the matrices in Tables 1-1 and 1-2 are those actions (A, B, C) which should be performed by the operator. Verify these actions prior to making an on-site call. 1-3 I MALFUNCTION/FAILING ASSEMBLY MA~RIX Table 1-1. AFTER PRESSING THE CIRCUIT BREAKER TO THE 1 POSITION, THE LOGIC ON INDICATOR DOES NOT LIGHT. TU81/TA81 DISPLAYS 000 ON POHER-UP. MALFUNCTION TU81/TA81 POWERS Dmm WHILE IN USE. I I I OPERATOR PANEL SWITCH DOES NOT OPERATE. I TU81/TA81 OPERATES WITH OPERATOR DOOR OPEN. FILE PROT INDICATOR DOES NOT LIGHT WHEN A WRITE PROTECTED TAPE IS LOADED. I I I I I I I I I I OPERATOR CORRECTIVE ACTION ENSURE TU81/TA81 IS PLUGGED INTO A LIVE SUPPLY ENSURE OPERATION IS LEGAL CHANGE TAPE FAIL ING AS SEMBL Y SERVO-CONTROL PEIGCR READ AMP R PE/GCR WRITE DRIVER FORMATTER READ FORMATTER WRITE INTERFACE POWER SUPPLY POWER AMPLIFIER CONTROL PANEL PNEUMATIC PUMP PRESSURE REGULATOR SUPPLY MOTOR/TACH SUPPLY HUB TAKE-UP MOTOR/TACH TAKE UP HUB TOP COVER SWITCH FILE PROTECT SENSOR COOLING FAN I I I TAKE UP REEL DOES NOT TURN FREELY. I I SUPPLY REEL DOES NOT TURN FREELY. I I I I I I I I I I I I I I I I I I SUPPLY REEL HUB CANNOT BE LATCHED. I I I I I I EXCESSIVE PNEUMATIC NOISE. I I I I I I A I I I I l I I A A 8 1 3 2 1 2 2 2 5 4 7 6 9 1 2 1 3 3 1 2 1 5 4 2 1 4 2 1 1 2 1-4 1 FAULT CODE MATRIX (OPERATOR TE<)T 01) Table 1-2. ---- {) -0 FAULT CODE 0 1 (Test Successful Latch Hub Correctly ___ X ---- l * '0 2 0 3 0 Lf A A A A Clean Head/Tape Path Hubs --B B B B Change Tape Cl_oseTop Cover- -----~st~~i Wr._grote~t Ring Run Test 02 (See NOTE 1) Run Test 03 (See-'-"NOTEl) X )f (See--NOTEZ--SeTow)----_. 4 4 4 i~ Se rvo-Contro1 -- -3PE 7GClf-IteadP'AmpUi: ier--' 3 1 ~f -Z- 2 2 1 PE/GCR -~lrite Driver -.----________________ .__ Format ter Read 5 5 Formati-er Write - - - - - 5 5 6 ----..-- -. .."._.. _. Interface --_ .. .~-- k"'~"_' _ . . _ _ _ _ .. W•• _"_"._'_~~~m lr _M -~ ...... I CJ1 --_.... -~ _~~~..c=_~:~~lEP_l:1__.______ Power Amplifier -Co'ntrol Pa-neT---- -_._---- ---------.- _._- ---~---~---.- 0 7 0 8 0 9 B 1 1 1 6 7 8 A B B ---If B ~-.~ A f--- .---~ -_. --- -X Se~or A A B B C C 2 6 2 8 -7\ r--- A' _.B ---- f-"- --- r-- 2 9 A B ----- X X X X X X -- -7 -- ---- I-- _ -._-.._.. -~-- ----. --- 4 1 2 2 4 3 4 3 1 1 2 2 --- --- ~---." -~,- ------ -- --- - 4 -- f-- --- -- f-- 3- 6 3- -_. 1 1 r- ~ - --- -:3" --2 ---- ---- - -- --- 8- 1 1 - _. ---- ---- 5 f---- 1 -:C ,....-- --- -- --- ---f--- --1-- 3 :3 6 2 -- I - - --- f-4 3 1 2 2 2 1 3 1 4 1 ------- -1 .. _--S f - - '---- - 1---- --- --- - - -------- 2 1 1 --I-- f--- --- * OPERATOR CORRECTIVE ACTIONS ** FAILING ASSEMBLY NOTE 1. NOTE 2. 2 7 -r EOT/BOT Sensor To·p-CoverSWTt"ch-------"FT le--pt.otec t-Sensor-------- ==== ._- - 2 5 ".-~-- ~.-."~.,-,- -Pres'surI.!-ieguTitor---------- 2 4 X - -- 7 """if 2 3 A i- '-i 3 2 2 2 1 1 2 4 4- 7; 4 1 2 ----1--2' 1 2 1 -- f-----T --f' 3 --1-2· 5 2 5 3 -.- --- r-' - - --e-5 6- 5 -"6- -i'3 2 --- f--------- f----r--- -r 1 2 2 -.--~ ----- .l~!.<e~_l2P_ Moto_r/Tac~ _ _ 2 1 A --------- f---- - - -- ---_._f-----. ---- --_. ----- --- _~_u._P.P_~Y. H.':l_lJ... ___ .. ___.______._..__ 2 0 . - ----- f----- -- r--- - ---- .!~!.<..c=~_~J> Air Bearing --Head (AmplitucfeError)-1 "Head -'(-Oat-aRe 1 iei})! 1 i ty) ----- .. _~~P.E..ly_)-1ot 0 r-/T ~ c~ ___ .... --- 5 A f-------- 1---- - -----C --'--'._-- _~.u..ppl.L_Air B_~!:...~E1L_ _____ Temperature r---'c--l 1 1 3 4 1 2 f-_.-- ---- A ~.--~---------.----- ~~~:~Ii I~_=~~~~~= 1 0 A -X- A- t.. Pneumatic Pump ** 1fT! te-r- -------- - - - - '"'-------_._---.. _- 0 6 --- --- f--.- Threa..!..]~ape Co~ectly _ _ _ _ _ _ '"' 0 5 Do not run Tests 02 and 03 unless Test 01 d irec ts the ir use.. Te st 02 will not run Stand-a lone. Fault can be caused by operator pressing RESET/FAULT switch during a LOAD or UNLOAD operation. '--~ Table 1-2. FAULT CODE ( * l ...... I m ** Test Successful Clean Hub Pads Thread Tape Correctly Clean Head/Tape Path/Hubs Change Tape Close Top Cover Run Test 02 (See NOTE 1) Run Test 03 (See NOTE 1) (See NOTE 2 Below) Servo-Control PE/GCR Read Amplifier PE/GCR Write Driver Formatter Read Formatter Write Interface Power Supply Power Amplifier Control Panel Pneumatic Pump Filter Supply Air Bearing Take-Up Air Bearing Head (Amplitude Error) Head (Data Reliability) Supply Motor/Tach Supply Hub Take-Up Motor/Tach EOT/BOT S~nsor Top Covert Swi tch File Protect Sensor Pressure Regulator Cooling Fan Temperature Sensor 3 0 3 1 3 2 3 3 3 4 3 5 3 6 FAULT CODE MATRIX (Cant'd) 4 1 4 4 2 3 4 7 4 8 5 0 5 1 5 2 5 3 5 4 5 5 5 6 6 6 6 6 6 6 0 1 2 3 4 5 6 6 6 6 7 8 --,9 A A B A A X X X X X X 1 1 2 1 , 1 1--'" X 1 2 2 I 2 4 4 4 4 5 5 5 5 7 7 8 8 8 1 3 3 1 1 1 2 6 6 6 2 2 "- i--" ,-" "."- 1 3 2 1 1 2 X 2 "" -- X 2 ", 1 -"'- f--'" -"'" I 1 1 1 2 2 1 2"1 _.-.._...._.. 1 '""' "2 f f--j ", 1--'- 1-'" 1 4 11 3 "" X I 7 ... ,-- ,..-.._- 1-,-,,- --,_.- ,- 3 3 ~ X 10 9 12 i--1:3 - -"-'- --- I - - - 3 "'- - C' X 1 6 3. 6 1 2 1 2 2 3 3 1 -- ~~ ""-I-' ,,- * OPERATOR CORRECTIVE ACTIONS ** FAILING ASSEMBLY NOTE 1. NOTE 2. Do not run Tests 02 and 03 unless Test 01 directs their use. Test 02 will not run Stand-alone. A Fault can be caused by the operator pressing any operator panel switches for longer than 15 seconds during the power-up cycle 1.2.1.2 Test 02 Follow-Up Refer to Table 1-3 if, after running Operator Test 01, Fault Code 22 appears on the display. Table 1-2 indicates that Test 02 is reauired if ooerator actions A, Band C did not resolve the p~oblem. {f Tes t 02 is unsuccessful, refer the fault code displayed to this table for probable failing assemblies. Table 1-3. TEST 02 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 22 7 7 1 FAULT CODE 0 OPERA fOR ACTION Illegal Op Sequence Ensure Tape is Thd'd Repeat Test A 7 7 2 3 7 4 7 5 8 8- -g- 8 0 1 3 2 8 4 8 8 6 5 8 8 9 9 9 7 9 0 1 2 9 7 ~ 9 8 B C FAILING ASSEMBLY Servo-Control Power Amplifier Supply Motor/Tach Supply Hub Take-Up Motor/Tach A 1 i 1 2 1 2 1 2 1 2 1 1 2 2 2 3 4 3 4 3. 3 . 3 . 3 4 4 4 4 3 3 i 3 4 2 1 1 2 4 1 1 1 1 2 2 2 2 1 2 1 2 3 3 . 3 ·3 i 3 3 . 3 4 4 4 4 4 1 2 1 2 1 4 1 2 1 2 3 . 3 34 4 q Refer to Table 1-4 if, after running Operator Test 01, Fault Code 24 appears on the display. Table 1-2 indicates that Test 02 is required. If Test 02 is unsuccessful, refer the fault code displayed to this table for probable failing assemblies. Table 1-4. TEST 02 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 24 7 FAULT CODE OPERATOR ACTION Illegal Op Sequence Ensure Tape is Thd'd Repeat Test 0 7 1 7 7 2 3 7 4 0 5 8 1 8 8 8 8 2 3 4 5 8 6 8 7 8 9 9 0 9 1 9 2 9 7 9 8 ~ A B C A F'ATLTNG ASSEMBLY Servo-Control Power Amp 1i f i er Supp 1 Y MotorTfach 8 7 1 1 2 2 I2 1 2 1 1 3 1 1 1 2 1-7 1 1 2 1 2 1 1 1 1 2 2 2 2 1 2 1 2 3 1 2 2 1 3 2 I 1 11 21 I Refer to Table 1-5 if, after running Operator Test 01, Fault Code 26 appears on the display. Table 1-2 indicates that Test 02 is required. If Test 02 IS unsuccessful, refer the fault code displayed to this table for probable failing assemblies. Table 1-5. TEST 02 TERI1INATION CODES FOLLOWING TEST 01 FAULT CODE 26 7 7 FAULT CODE 0 1 OPERATOR ACTION Illegal Op Sequence Ensure Ta~e is Thd'd Repeat Test A 7 2 7 3 7 4 7 5 8 8 8 8 0 1 2 3 8 4 8 5 8 6 8 7 8 9 9 0 9 1 9 2 9 7 9 8 B C FAILING ASSEMBLY Servo-Control Power Amplifier Supply Motor1Tac~ Take-Up Motor/Tach 1 0 0 A 1 1 1 1 1 :3 1 2 2 2 z z ~ 2 1_ 1 z 1 1 1 1 1 2 1 2 2 2 2 2 2 1 1 1 J 1 2 2 2 2 2 Refer to Table 1-6 if, after running Operator Test 01, Fault Code 30, 31 or 36 appears on the display. Table 1-2 indicates that Test 02 is required if operator action A did not resolve the problem. If Test 02 is unsuccessful, refer the fault code displayed to tnis table for probable failing assemblies. TEST 02 TERMINATION CODES FOLLOWING TEST 01 FAULT CODES 30, 31, OR 36 Table 1-6. FAULT CODe OPERATOR ACTION Illegal Op Sequence Ensure TaQe is Thd d Repeat Test FAILING ASSEMBLY Servo-Control Power Am~l if ier Pneumatic Pump Filter Supply Air Bearing Take-U~ Air Bearing Take-Up Motor/Tach Pressure Regulator 7 7 0 1 7 2 7 3 7 4 7 5 8 8 8 0 1 2 8 3 8 4 8 5 8 6 8 7 8 9 9 0 9 1 9 2 9 7 9 8 0 0 A B C A 1 2 2 3 4 2 1 3 2 4 1 1 3 3 3 3 1 1 1 1 3 1 3 2 3 3 3 1 1 1 2 2 2 2 1 1 1 3 3 1 1 2 4 2 4 2 2 2 1 2 2 1 3 1-8 3 Fo11ow~Up 1.2.1.3 Test 03 - Refer to Table 1-7 if, after execution of Operator Test 01, Fault Code 03 appears on the display. Table 1-2 indicates that Test 03 is required if operator actions A or B does not resolve the problem. If Test 03 is unsuccessful, refer the fault code displayed to this table for probable failing assemblies. Table 1-7. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 03 I FAULT CODE 0 0 0 0 2 4 I n I n I h OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Control Power AmElifier Read/vir 1 te Head Take-UE Motor/Tach '7 '7 '7 4 5 6 Q "7 I nl v 8 0 A I B A 1 1 A 1 2 1 I 4 I 31 I2 I I Refer to Table 1-8 if, after execution of Operator Test 01, Fault Code 25 appears on the display. Table 1-2 indicates that Test 03 is required. If Test 03 is unsuccessful, refer the fault code to this table for probable failing assemblies. Table 1-8. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 25 FAULT CODE 8 2 8 4 OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Control Power Amplifier Read-Write Head Take-Up Motor/Tach PneumatIc Pump ., FIl.ter Pressure Regulator 9 4 9 9 9 5 6 8 A B A 2 2 1 1 1 1 0 0 A 2 2 ~t- 2 1 I I 1 I L I 1-9 II I Refer to Table 1-9 if, after execution of Operator Test 01, Fault Code 04, 06, or 36 appears on the display. Table 1-2 indicates that Test 03 is required if operator actions A or B does not resolve the problem. If Test 03 is unsuccessful, refer the fault code displayed to this table for probable failing assemblies. Table 1-9. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 04, 06, or 36 8 FAULT CODE 2 8 4 OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Control Power Amplifier Read/Write Head Take-Up Motor/Tach 9 4 9 5 9 6 9 8 0 0 A 2 B A 1 1 A 2 1 1 L 1 1 3 1 Refer to Table 1-10 if, after execution of Operator Test 01, Fault Code 32 appears on the display. Table 1-2 indicates that Test 03 is required. If Test 03 is unsuccessful, refer the fault code to this table for probable failing assemblies. Table 1-10. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 32 FAULT CODE 8 2 8 4 OPERATOR ACTION Ensure Tape is Not Threaded Re~eat Test FAILING ASSEMBLY Servo-Control Power Amplifier Read-Write Head Take-Up Motor/Tach Pneumatic Pump Filter Pressure Regulator 9 4 A 9 5 B A 1 1 9 6 9 8 0 0 A 2 2 1 1 L 1 1 1 3 5 4 6 1-10 Refer to Table 1-11 if, after execution of Operator Test 01, Fault Code 33 or 35 appears on the display. Table 1-2 indicates that Test 03 is required if operator actions A or B does not resolve the problem. If Test 03 is unsuccessful, refer the fault code displayed to this table for probable failing assemblies .. Table 1-11. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 33 or 35 I 8 I 8 I 9 I 9 I 9 I 9 I 01 2 FAULT CODE 4 OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Control Power Amplifier Read/Write Head Take-UE Motor/Tach 5 4 6 0 8 A B A 1 I I 1 1 1 I I I I A I I 1 I 1 I I1 I I Refer to Table 1-12 if, after execution of Operator Test 01, Fault Code 48 appears on the display_ Table 1-2 indicates that Test 03 is required. If Test 03 is unsuccessful, refer the fault code to this table for probable failing assemblies. Table 1-12. TEST 03 TERMINATION COnES FOLLOvlING TEST 01 FAULT CODE 48 FAULT CODE 8 2 8 4 OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Gontrol Power Amplifier Read-Write Head Take-Up Motor/Tach Supply Motor/Tach 9 4 9 5 9 9 6 8 0 0 A 1 1 '1. '1. B A A 1 1, 2 1 'L 1 1-11 1 2 I Refer to Table 1-13 if, after execution of Operator Test 01, Fault Code 52 appears on the display. Table 1-2 indicates that Test 03 is required if operator actions A or B does not resolve the problem. If Test 03 is unsuccessful, refer the fault code displayed to this table for probable failing assemblies. Table 1-13. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 52 FAULT CODE 8 8 9 9 9 2 4 4 5 6 OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Control Power Amplifier Read/Write Head Take-Up Motor/Tach 9 8 a 0 A 2 2 B A 1 1 A 2 1 2 1 Refer to Table 1-14 if, after execution of Operator Test 01, Fault Code 30 or 31 appears on the display. Table 1-2 indicates that Test 03 is required. If Test 03 is unsuccessful, refer the fault code to this table for probable failing assemblies. Table 1-14. TEST 03 TERMINATION CODES FOLLOWING TEST 01 FAULT CODE 30 or 31 FAULT CODE 8 8 9 2 4 4 OPERATOR ACTION Ensure Tape is Not Threaded Repeat Test FAILING ASSEMBLY Servo-Control Power Amplifier Read-WrIte Head Take-Up Motor/Tach 9 5 9 6 9 8 0 0 A 2 2 B A 1 1 2 3 1 1 1 1-12 1 1 2 1.2.2 On-Site Actions Prior to initiating any diagnostic test, perform a ~horough visual inspection of the TU81/TA81. Inspection of the head recording surface, cleaner blades, write enable reflective ring, hub assemblies, and proper seating of electrical connectors is always the first step in an organized troubleshooting procedure. After the visual inspection, perform a functional check of the TU81/TA81 as follows (see Figure 1-1): 1. 1001. This operation of the Perform Functional Troubleshooting Procedure procedure transport, checks out including the functional ancillary mIcroprocessor cannot fault operation and visual feedback. sensors, detect which without troubleshooting the manual 2. Refer to the individual specific fault codes. 3. Perform any corrective action troubleshooting procedures. 4. Verify operation of the transport by again performing Operator Diagnostic 01 or other set up tests, as directed by the troubleshooting procedure. as procedures directed by for the 1.3 DIAGNOSTIC TESTS The maintenance philosophy for trouble analysis of the TU81/TA81 is to minimize the time required to restore the TU81/TA81 to an on-line status, after a reported fault condition occurs. This is accomplished by providing two types of diagnostics as follows: 1. fA test which the operator the fault condition. 2. Field Service tests to be performed at the request of or by maintenance personnel. 1-13 initiates prior to reporting I POWER TUSI OFF AND ON (WAIT 15 SECONDS) EXIT TO FAULT CODE SECTION. PERFOR..."1 FAULT CODE PROCEDURE. RUN TEST RUN rEST 01 01 REPLACE TMSCP/STI MODULE PROBLEl1 IS IN HOST SYSTEM. DRIVE InDICATIONS ARE NORMAL. PERFORM 1001 POWER ON PROCEDURE RUN TEST 01 RUN OPERATOR TEST 01 Figure 1-1. ON-SITE TROUBLESHOOTING FLOWCHART 1-14 1.3.1 Operator Tests The operator tests are: 1. 2. Operator Diagnostic (Test 01) Unit Identification (Test 04) The operator diagnostic comprises a functional test which directs operator actions after a fault code appears. Operator tests, procedures and a fault code/corrective action table are contained in the CUSTOMEl.{ DIAGNOSTICS section of the TU8l/TA8l Subsystem User Guide. Ine fault code may indicate anyone or more of the following types of fault conditions: o Environment or Media Problems This type of problem would direct the operator to clean the tape path area and/or use another known good quality tape. o Operator Error Problem This type of problem \-'lould indicate conditions such as top cover open, write enable ring not present, tape threaded incorrectly, etc. o Transport Circuit Problems These would be fault conditions which require field service personnel intervention. It is the responsibility of the field service representative to ensure that the operator performs this diagnostic, and to determine from the operator the fault code which appears, after running the operator diagnostic. Because the operator diagnostics are an integral part of the trouble analysis procedures, subsequent paragraphs contain the procedure to initiate this diagnostic. The only difference between the procedure contained in the CUSTOMER DIAGNOSTICS section of the TU8l/TA8l Subsystem User Guide, and the following procedure, is an expanded feature to display a Sub-Fault Code for maintenance purposes. 1-15 I 1.3.1.1 Operator Diagnostic (Test 01) The operator diagnostic consists of one selectable test (Tes t 01) which runs for approximately 10 minutes, when a 2400 foot tape is used. Faults encountered during the test terminate the diagnostics and display a numerical code on the display panel. Any fault code should be logged by the operator and reported to the field service representative, if operator corrective actions do not resolve the problem. The operator diagnostics are initiated as follows: o o Transport Status 1. Transport powered on (LOGIC ON indicator lit). 2. Tape threaded through tape path and but not loaded (untensioned). onto take-up reel, Test Procedure 1. Press TEST switch. a. b. c. 2. DIAGNOSTIC indicator lights. Display panel shows 01. Disable port switches (TABI only). Press EXECUTE switch. a. Test starts with display panel incrementing from 000 thru 999. Verify that all segments of the numerical display are functioning. b. following Concurrent with step a. above, the indicators are lit: FILE PRO, LOGIC ON, ON-LINE, RESET/FAULT, and DIAGNOSTICS. c. Test continues with various motion and exercises for approximately 10 minutes. read/write The transport performs a Rewind/Unload operation and 00 appears on the display panel if the test runs to completion. If the test is unsuccessful, the test terminates and a fault code appears on the display panel. If the problem cannot be resolved through operator actions, as indicated in Table 1-2, the fault code is referenced directly to the corresponding troubleshooting procedure for corrective action. When referring to the Fault Code Troubleshooting Procedures for corrective action, a Sub-Fault Code interrogation may be required. With the fault code still indicated on the display panel, press and hold the CE switch. This action will cause the Sub-Fqult Code to appear on the display. 1-16 1.3.1.2 Unit Identification (Test 04) The Unit Identification Number (fest 04) is a unit address feature giving each tape transport a unique ID code (from a to 255) to be recognized by the nost. This ID is especially useful in a multi-drive configuration since it gives you the opportunity to re-address peripheral device from one tape drive to another in case of emergency (tape drive failure, connection breakdown, etc.). Tne Unit Number is a three-digit code that is manually entered from the transport control panel using the procedure shown below. This code is stored in the transport non-volatile memory (wnich retains stored data in case of power fluctuations or failure) until you enter a new unit ID number. The Unit Number is constantly indicated on the display panel when the drive is powered on and is in toe normal on-line, off-line, or tapeunloaded status. When there is a fault condition, or a diagnostic test is running, the Unit Number is replaced by the fault code or test number indications. The unit number can flash on the display if low Tension Mode is detected (see Test 82, Option 01). Example - To enter Unit Identification Number 201, follows: DIAGNOSTIC indicator display = 00 display = 04 display = 000 display = 002 display = 200 display = 201 * Press simultaneously CE and * * * * * proceed as TEST switches Press STEP four times Press EXECUTE Press STEP twice Press TEST twice Press ':>.LJ:.r once ("·"'T':'n To store that ID code in the transport memory, * * Press EXECUTE Press RESET to return the drive to operating condition display = 00 display = 201 1.3.2 Field Service Diagnostic Tests Field service diagnostic tests should be performed in conjunction with the requirements of the Fault Code Troubleshooting Procedures. When reporting to the site, obtain as much information from the operator and operating system as is available. Fau.J..l: Codes, tne frequency at wnich tney occur and, if possible, tne operation in progress at that time, are all tnings wnich should be considered prior to execution of the diagnostics. If the fault is intermittent, the information received from the operator and operating system may be instrumental in directing field service personnel to the appropriate test to duplicate the condition, under wnich the fault occurs. 1-17 I If the fault condition is a "hard error", or one which occurs frequently, start the troubleshooting procedure by executing Operator Diagnostic Test 01. This test is a lead-in to all fault codes and subsequent troubleshooting procedures. 1.3.2.1 Initiating Field Service Diagnostic Tests - The field service diagnostic tests are initiated as follows: o Transport Status Status requirements of the transport are individual Field Service Diagnostic Tests. o listed in the Test Procedure 1. 2. While pressing CE switch, press TEST switch. a. DIAGNOSTICS indicator illuminates. b. Display panel indicates 00. Press STEP switCh. a. Display number increments each time STEP is pressed, or will increment automatically, if STEP is held pressed. b. To facilitate test number selection, the following procedure can be used. Example: Test 39 selection required. - Press STEP switcn until 03 appears on display panel. - Press TEST switch and the 3 digit transfers to the left. - Display now indicates 30. - Press STEP switch again until display increments from 30 to 39. c. 3. If test options (see Section 2) are desired, press and hold CE switch, then press EXEC while CE is held pressed. Display will indicate 00. STEP switch is then pressed to select the desired option. Press EXECUTE switcn. a. Test is initiated. If test runs to completion, tne display panel indicates 00. If test fails, the display panel indicates the fault code. 1-18 1.3.2.2 Field Service Special LOAD/UNLOAD Procedures ~ While performing specific Fault Code Procedures, the Field Service Representative may be directed to perform a TEST LOAD or an UNTENSION£D Ul'iLOAD procedure. A descr iption of these special procedures is as follows: o o TEST LOAD - This function is used if a reel of tape is suspected of not being wrapped properly and a tape re-wrap is necessary. 1. Press TEST Switcn display indicates 01. 2. Press LOAD Switcn - Forward tape motion is initiated to EOT. The take-up reel motor moves tape while the supply reel motor is completely untensioned. When EOT is detected, a normal rewind function is initiated (with tape tension) to BOT. DIAGNOSTIC indicator lights and UNTENSIONED Ul'iLOAD - Th is function is used to unwrap tape from the take-up reel onto the supply reel following a servo fault. Tne velocity servo (take-up reel motor) is completely untensioned while the supply reel moves tape in the reverse direction. Press UNLOAD switcn while tape is untensioned (not loaded). 1.3.2.3 Sub-Fault Codes - fhe troubleshooting procedures may direct the field service representative to display the sub-fault code associated with the primary fault code. The sub-fault code is displayed by pressing the CE switch after the primary fault code appears on the digital indicators. The sub-fault code will be displayed as long as the CE switch is held pressed. Interpretation of the sub-fault codes is discussed in section 1.5. 1.4 KEY TO FAULT CODE TROUBLESHOOTING PROCEDURES After a fault code appears on the display panel, reference tne fault code number directly to the corresponding number of the troubleshooting procedures listed numerically on subsequent pages. The bas ic troubleshooting procedure format (Figure 1-2) uses YES (Y) or NO (N) responses to sequential conditions to lead maintenance personnel to appropriate corrective action. itlh en a fa u 1 t can be c a used by any 0 n e 0 f s eve r a 1 fa c tor s , the separate actions to correct eacn of these factors are numbered according to priority level with the action having the highest probability of success being listed as number 1. If several actions have the same probability of correcting the fault, the one that is easiest to perform (takes the least time) is listed as tne first action. 1-19 I Faul t Code Appearing On Display Panel FAULT CODE TROUBLESHOOTING PROCEDURE l ~~~~~~~~~~~~ I Maintenance Symptom Assumption: FAULT CODE 32 TU8l/TA8l displays Fault Code 32 as a result of a Velocity Servo fault. NOTE Response Question Following any corrective action, Operator Diagnostic Test 01 should be executed. Step Reference Number Without tape threaded, execute Test 03. Termination Code 96 or-987 Diagnostic Y N Termination Code 827 020 I Action To yl N Be Performed ________~0~30~~~,--ll__~,~T~e~rm==i:n:a:t:io:n~C:o~d:e~8~4~7________, 040 First Action Taken i \" \ ----------------0-6~--Cb Indicates Only One Action Be Taken LI Replace Servo-Control Module. T 1 I 2 Replace Power Amplifier Module. 050 -cD} ~ TO~~~ 090 Replace Take-up Motor/Tach Assembly. t Replace Filter. 5 Replace Pump Assembly. /f\ ,~Replace Regulator Assembly. Underlined Indicates Last Of Numerical Sequence Of Actions Figure 1-2. KEY TO FAULT CODE TROUBLESHOOTING PROCEDURE 1-20 1.5 SUB-FAULT CODE INTREPRETATION As mentioned in paragrapn 1.3.2.3, the sub-fault code is displayed by pressing the CE switch after tne primary fault code is indicated. Sub-fault codes are listed after the associated fault code. Interpretation of tne SUb-fault numerical display is as follows: 1. Example 1 - Fault Code 25, Sub-Fault Code 64 a. b. c. d. e. 40 - Take Up sensor saw fault code first. 20 - Fault code occurred on up ramp. 04 - Fault occurred in reverse direction. 00 - Fault occurred with low speed demanded. 00 - Fault occurred in start/stop mode. 64 FAULT CODE 25 SUB-FAULT CODe a. b. -----01... -----01.,.. 00 File sensor saw the fault first 40 Talceup sensor saw the fault first 00 10 Fault occurred during constant motion Fault occurred on down ramp 20 Fault occurred on up ramp 30 Fault occurred in stoploclc 00 04 Fault occurred in forward direction Fault occurred in reverse direction c. -----01... d. -----j... 0001 02 e. -----.~ 00 08 Figure 1-3. Fault occurred with low speed demanded Fault occurred with high speed demanded Fault occurred with rewind speed demanded Fault occurred in start/stop mode Fault occurred in streaming mode SUB-FAULT CODe INTERPRETATION - EXAMPLE 1 1-21 I 2. Example 2 - Fault Code 25, Sub-Fault Code 19 a. b. c. d. e. 00 - File sensor saw fault first. 10 - Fault occurred on down ramp. 00 - Fault occurred in forward direction. 01 - Fault occurred with low speed demanded. 08 - Fault occurred in streaming mode. 19 FAULT CODE 25 SUB-FAULT CODE a. -----!.. 00 ~ 40 b. 00 • 10 File sensor saw the fa.ult first Takeup sensor saw the fault first Fault occurred during constant motion Fault occur~ed on down ramp 20 Fault occur~ed on up ramp 30 Fault occurred in stoploclc. -- it- c. • 00 0'+ d. -----.~Ol Fault occurred with low speed demanded Fault occurred with high' speed demanded Fault occurred witb rewind speed demanded ----ooej. Fault occurred in start/stop mode Fault occurred in streaming mode 00 02 e. 00 ~08 Figure 1-4. 1.6 Fault occur~ed in fo~ward direction Fault occurred in reverse direction SUB-FAULT CODE INTERPRETATION - EXAMPLE 2 TROUrlLESHOOTING DIAGRAMS NOTE Functional Troubleshooting Procedure 1001 through 1003 Check out the functional operation of the TU81/TA81, including ancilliary sensors, which the TU81/TA81 microprocessors cannot fault detect without manual operation and visual feedback. 1-22 FUt~C fIONAL POwER-ON CHECKOUT 1001 TROuBLESHOOTING PROCEDUR.£ POwER-ON CriECKOUT 1001 This Power-On/Installation Procedure is for the isolation of AC Power faults. The T U81/ TA8l I sAC circuit breaker is turned off and the TU8I/TA8l is plugged into a "live" AC supply of the correct voltage. Assumption: NOTE Following any corrective action, reconnect any assemblies that may have been disconnected and restart this procedure with circuit breaker turned off. 010 Y N Turn circuit breaker ON. I I I I I I I I ! i I Y I I I I I I ! I I I· 020 030 I 040 I I 050 I 060 070 080 090 100 I· i I I , Does circuit breaker remain on? N Disconnect cooling fan cable from power supply. I Turn circuit breaker on. Does circuit breaker I remain on? I Y N Reconnect cooling fan cable to power supply_ I I I I I I I I I I I Disconnect pump cable from power supply. Turn circuit breaker on. Does circuit breaker remain on? I 1 Replace Power Supply Assembly. I 1 1 Replace Cooling Fan Assembly. I Replace Pump Assembly. I Y N Is the LOGIC ON LED on control panel illuminated? I I I y I I I I I I I I I 2 I I I 2 N Is the LOGIC OFF LED on control panel illuminated? I Y N Is tne cooling fan operating? I I I 1 Ensure that AC supply cable is plugged into I I power supply cable. I I 2 2 A B C D 1-23 I POwER-ON CHECKOUT 1001 (Cont'd) 110 120 130 140 150 160 170 180 A B C D 1 1 1 1 I I I I I I I / / I I I I I I I I I 200 240 250 L60 270 280 1 I I 2 I 3 I 2 I / 3 Ensure tnat AC supplied to the TU81/TA81 is "live" and the correct voltage for the unit. Replace Power Supply Assembly. Ensure control panel cable is plugged into ServoControl Module and power supply. Replace Power Supply Assembly. Replace Control Panel Assembly. Iff I / 1 Replace Power Supply Assembly. I I I 230 / I I I I I Is the cooling fan operating? y 220 I / I I / I I I I /. 190 210 I POWER-ON CHECKOUT 1001 / I 1 Go to Procedure 1002. N Is the cooling fan operating? / 1 I 2 Replace Cooling Fan Assembly. Replace Power Supply Assembly. I Y N Is the OFF LED illuminated? I I I Y N Does 3-digit display show unit identification, I I I is FILE PRO LED illuminated, and RESET/FAULT, I I / ON-LINE and DIAGNOSTICS LED's all extinguished? / I I / / Y I / I I I / / / I / I I I / I / / I I I I I I I / I I / / I I I I I I I 333 ABC N Are RESET/FAULT, ON-LINE, and DIAGNOSTICS LED's all illuminated? Y N / y. I / I / I I I I I I / 3 D I I I / Is tne display blank? N Wait for 15 seconds. I extinguished? Is RESET/FAULT LED / Y N Is a valid fault code displayed? I / 1/1 I Replace Servo-Control Module. (Run SetUp Tests 37, 49, 82, 04, 64, 31.) / 3 E 1-24 POwER-ON CHECKOUT 1001 (Cont d) I 290 300 310 320 330 340 A B C D 2 2 2 2 I I I I I I I I I I I I 1 I I I I I I I i 2 I I I I I I POWER-ON CHECKOUT 1001 E 1 I 1 Go to procedure for displayed Fault Code. I Y N Is FILE PRO LED illuminated? I I I I 1 I 112 Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31). I i I I I 1 Go to Procedure 1003. , 2 Replace Power Supply Assembly I 1-25 FUNCTIONAL TROUBLESHOOTING PROCEDURE POWER-ON CHECKOUT 1002 POWER-ON CHECKOUT 1002 This Power-On Procedure is for the isolation of DC Power faults. Assumption: The TU8l/TA8l's AC circuit breaker is turned on, the OFF LED is illuminated and the cooling fan is operating. NOTE " ",,- Following any corrective action, reconnect any assemblies that may have been disconnected and restart this procedure. 010 020 030 040 050 Y N Disconnect DC cable harnesses from the power supply. I I Press LOGIC ON switch of control panel. Does LOGIC ON I I LED illuminate and stay illuminated? (See Table 1-1.) I I I I 1 Replace Power Supply Assembly. Y N Reconnect DC cable harnesses to power supply_ I I Disconnect DC supply cable from Power Amplifier Module. I I Press LOGIC ON switCh. Does LOGIC ON LED illuminate I I and stay illuminated? I I I I I I Y N Reconnect DC supply cable to Power Amplifier Module. I I Disconnect DC supply cable from Write Driver Module. I I Press LOGIC ON switcn. Does LOGIC ON LED illuminate I I and stay illuminated? I I I I I Y N Reconnect DC supply cable to Write Driver Module. I I I I Disconnect DC supply cable from Servo-Control I I I I Module and Read Amplifier Module. Press LOGIC ON I I I I switch. Does LOGIC ON LED illuminate and stay I I I I illuminated? I I I I I I I I 2 2 2 2 A B C D 1-26 ---------------------- POWER-ON CrlECKOUT 1002 (Cont d) I 060 070 080 090 10 0 110 ABC D 1 1 1 1 I I I I I I I I I I I I I Y N Reconnect DC supply cable to Servo-Control I I Module and Read Amplifier Module. I I Disconnect DC supply cable from Formatter I I Write Module and Formatter Read Module. i i Press LOGIC ON switch. Does LOGIC ON LED I I illuminate and stay illuminated? I I I iii I I I iii I I I I I I I I I I I I I I I I I I I I I I I I ! I I I ! ! , , I I I I I I I I I I I 120 130 POWER-ON CHECKOUT 1002 I 2 I 1 Replace Power Supply Assembly. 2 Replace Control Panel Assembly. I l I R e p1ace In t e r f ace Mo d u 1 e . I I I I 1 I I I I I I I ! i I I I I I I I I Y N Reconnect DC supply cable to Formatter I I Read Module. Disconnect DC supply cable I I from Interface Module. Press LOGIC ON I I switch. Does LOGIC ON LED illuminate and I 1 s t a y i 11 um i na ted? Y N Remove Formatter Write Module and reconnect I I DC supply cable to Formatter Read Module. I I Press LOGIC ON switch. Does LOGIC ON LED I I illuminate and stay illuminated? I I I I I I I I I I I I I ! i I 2 I 2 Replace Formatter Read Module. Replace Power Supply Assembly. 140 i I i I iI T 1 Replace Formatter Wr i te Module. 150 I I I I I I I I I 160 170 180 190 200 I I I I I I I I I I I Y N Remove Servo-Control Module and reconnect DC I I supply cable to Read Amplifier Module. I I Press LOGIC ON switCh. Does LOGIC ON LED I I illuminate and stay illuminated? I I I 1 Replace Read Amplifier Module. I I (Run Set Up Test 31.) I I 2 2 I I I I I I Replace Servo-Control Module. (Run Set Up Tests 37, I 49, 82, 04, 64, 31.) I Replace write Driver Module. (Run Set Up Tests 64, 31). T T T 2 Replace Power Supply Assembly. 2 1 1 1 I 1 I Replace Power Amplifier Module. 1-27 I FUNCTIONAL TROUBLESHOOTING PROCt:DURE POWER-ON CHECKOUT 1003 POWER-ON CHECKOUT 1003 This Power-On Procedure operational faults. Assumption: is for the detection/isolation The TU8l/TA8l is powered on with the LOGIC OFF LED extinguished, the LOGIC ON LED illuminated, the FILE PRO LED illuminated, the display blank, and the TU81/TA8l unloaded. NOTE Following any corrective action, procedure should be restarted. 010 020 030 040 050 060 Y N I I I I I I I I I Y I I I I I I 1 I 2 I 1 I Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, Is 01 displayed? Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Press EXECUTE switch and observe LEDs and display of operator panel. Does display sequence from 00 to 11 to 22 to 99 without any missing segments? And while display is sequencing, are ON-LINE, HI DENSITY, and RESET/FAULT Lt:Ds illuminated? y N 080 I I I I I I I I I I I I I I I 100 Thread a write enabled tape and close top cover. Press TEST switch. Does DIAGNOSTICS LED illuminate? 2 070 090 this 49, 82, 04, 64, 31.) N 1 I Replace Control Panel Assembly. 2 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) y N Does Diagnostic Test 01 terminate displaying I I I I 2 2 A B of DO? 1-28 POWER-ON CHECKOUT 1003 (Cont I d) POwER-ON CrlECKOUT 1003 A B 1 110 I I I I 1 I 1 Go to the Fault Code Troubleshooting Procedure for the displayed Fault Code. 120 Y N Is the BOT LED extinguished? 130 I I I I I I 140 -I 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 2 Replace Control Panel Assembly. I I 150 Y N Press the RESET/FAULT switch. 160 I I 1 I 1 170 180 190 200 210 220 I I ! I 2 I I ! I I I I I I Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31,,) Y N Thread tape and close operator door. I I switch. Does TU8l/TA8l load tape? I I I Y N Fault Code displayed? I I I I I 1 Replace Control Panel Assembly. I I 1 I 2 Go to the Fault Code Troubleshooting Procedure for the displayed Fault Code. Y N Is BOT LED illuminated? 240 I I I I I I I 1 I 2 Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 260 Y N Is FILE PRO LED extinguished? 270 I ! I I 1 I 3 3 Press LOAD Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 230 250 Is the display blank? Replace Control Panel Assembly A B 1-29 I POwER-ON CHECKOUT 1003 (Cont d) POWER-ON CHECKOUT 1003 I A 2 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 I I I I B 2 I 2 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) y N Press ON-LINE switCh. I I I I I I I 1 I Does ON-LINE LED illuminate? Replace Control Panel Assembly. 2 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) y N I I I Press RESET/FAULT switch followed by UNLOAD switch. Does TU8l/TA8l unload tape? f I I I I I I f y N I I I I I I I 1 I 2 Fault Code displayed? Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 1 Go to the Fault Code Troubleshooting Procedure for the displayed Fault Code. y N I I I I ! I I I I While pressing CE switcn, press TEST switch. Is 00 displayed? ' I I I y I I I I I I 1 I Replace Operator Panel Assembly. 2 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) N Press STEP switch. I 1 I Is 01 displayed? Replace Control Panel Assembly. 2 Replace Servo-Control ctodule. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) y N I I I I I I Press RESeT/FAULT switCh. Remove write permit ring from reel and rethread tape. With top cover open, press LOAD switCh. Is Fault Code 10 displayed? A 4 B 4 1-30 POwER-ON CHECKOUT 1003 (Cont'd) A 3 440 450 I I I I i I B 3 I 1 I 2 y N 470 I I I I I I I I I 490 500 510 520 Replace Top Cover Switch Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 460 480 POwER-ON CHECKOUT 1003 Press RESET/FAULT switch and close top cover. LOAD switcn. Does the TU8l/TA8l load tape successfully? Press 1 Go to the Fault Code Troublesnooting Procedure for the displayed Fault Code. y N I I I I I I I I I Is FILE PRO LED illuminated? 1 1 I 2 Replace File Protect Sensor Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, I 49, 82, 04, 64, 31. ) I 3 Replace Supply Hub Assembly. Unload tape; tnis procedure is completed without finding any faults. I 1-31 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 01 FAULT CODE 01 - READ ENVELOPE FAULT Assumption: TU8l/TA8l d isplays Fault Code 01 as a result of failing to detect a READ signal during a read amplitude checking diagnostic test. The most probable cause of this fault is a dirty read-write head. Another possible cause is damaged tape. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. , Clean read-write head, tape cleaner and air bearings. 020 2 Cnange tape to a known good write enabled tape. , 010 1 030 3 Ensure tnat cables between read-write head and Read Amp and write Driver Modules are correctly connected. 040 y N Execute Field Service Test 58. 050 I, 1 060 070 080 090 lOu 110 T, Termination Code OO? I , I Replace Formatter Write Module. I I I y I I 2 N Unload tape and execute Field Service Test 59. I Termination Code OO? I 1 3 I I 3 2 I I 2 I 4 llO Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace Read-write Head. (Run Set Up Tests 64, 31.) Replace Write Driver Module. (Run Set Up Tests 64, 31) 1 Replace Read Amplifier Module. (Run Set Up Test 31.) I 4 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 3l.) 5 Replace write Cable. I I FAULT CODE 01 SUB-FAULT CODE 00 Envelope not detected during read amplitude check (EGC test) 1-32 FAULT CODE 02 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 02 - READ AMPLITUDE TOLERANCE FAULT Assumption: TUB1/TA8l displays Fault Code 02 as a result of detecting a read amplitude out of range during a read amplitude cnecking diagnostic test. The most probable cause of this fault is a dirty read-write head. Another possible cause is damaged tape. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 Clean read-write head, tape cleaner and air bearings. I I 020 2 030 3 Ensure that cables between read-write head and Read I I connected. I I 040 050 060 070 OBO 090 100 I Change tape to a known good write enabled tape. T Amplifier Module and Write Driver Module are correctly Y N Execute Field Service Test 59. 2 2 i ! 3 1 I I Termination Code OO? Replace ~rite Driver Module. (Run Set Up Tests 64, 31) Replace Read Amplifier Module. (Run Set Up Test 31.) 4 4 Replace Servo-Control Module. (Run Set Up Tests 37, I I 49, B2, 04, 64, 31.) 5 5 Replace Formatter Write Module. 1 3 Replace Read-Write Head. (Run Set Up Tests 64, 31.) I I T I I I 6 Replace write Cable. FAULT CODE 02 SU8-FAULT CODE 00 Read amplitude outside range 1.5 volts ~ O.B volts (i.e. difference between EGC gain and gain in backup memory would cause an amplitude difference greater than O.B volts) 1-33 I FAuLT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 03 FAuLT CODe 03 - ID FAULT Assumption: TU8l/TA8l displays Fault Code 03 during an Diagnostic Test due to a failure to read or write the identification burst at load point. The probable cause of th is fault is damaged tape. Tne tape snould be free of defects within the first ten inches of tape after the BOT reflective marker. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 020 030 040 050 060 070 1 I 2 T Clean read-write head, tape cleaner and air bearings. Change tape to a known good write enabled tape. Y N Without tape threaded, run Diagnostic Test 03. I I Termination Code DO? I I I I I I I I I I I I I Y N Termination Code 98? I I I I 1 I I 2 I 1 Go to step 040 of Fault Code Troubleshooting Procedure 04. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace Take-Up Motor/Tach Assembly. (Run Set Up Tests 37, 49, 82.) 080 Y N Unload tape, execute Field Service Test 59. I I Termination Code OO? 090 1 2 I I 100 110 120 I I 2 3 I I 3 1 I I 4 4 Replace Jrite Driver Module. (Run Set Up Tests 64, 31) Replace Read-Write dead. (Run Set Up Tests 64, 31.) Replace Read Amplifier Module. (Run Set Up Test 31.) Replace Servo-Control Module. (Run Set Up Tests 37, I 49, 82, 04, 64, 31.) I 2 A 1-34 FAULT CODE 03 (Cont-d) FAULT CODE 03 (Contid) A 1 I 130 5 Replace Formatter Read Module. 140 6 Replace Formatter Write Module. I I I 150 7 Replace write Cable. FAULT CODE 03 SU8-FAULT CODES 00 01 02 Unable to read or write PE Identification Burst Unable to read or write GCR ID, ARA Burst, or ARA 10 AGC fault occurred while reading or writing from BOT in GCR I 1-35 FAULT CODe TROUrlL£SHOOIING PROCEDLIRE FAULT CODE 04 FAULT CODe 04 - LOw SPE£D wRITE ERROKS Assumption: TU8l/TA8l displays Fault Code 04 during an Diagnostic Test due to a failure to write a block witnin five attempts at low speed, or due to too many write errors while writing to EOT at low speed. The probable causes of this fault are dirty head and damaged tape. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 020 2 030 040 050 060 070 080 090 110 120 I T Clean read-write head, tape cleaner and air bearings. Change tape to a known good write enabled tape. Y N Witnout tape threaded, execute Diagnostic Test 03. I I Termination Code 98? I I I I I I I I I I I I I I I I I I I I I I I y N I I I I I I I I I I I I I I I I I I I I I 2 2 A B Termination Code 96? y N I I I I I I I I I I I I I I I I I I I 2 Termination Code 82? y N I I I I I I I I I I I I I I I I I 2 c o y I I I I I I I I I I I I I I 2 Termination Code 84? N Execute Field Service Test 60. I Termination Code any other than DO? I Y N Execute Field Service Test 58. I I I I I I I I I I I I I y I I Termination Code any other than OO? N Execute Field Service Test 59. I Termination Code OO? I 3 1 2 3 I I I I I I I I 2 2 2 F G tI Keplace Read Amplifier Module. (Run Set Up Test 31.) Replace Read-write Head. (Run Set Up Tests 64, 31.) 1-36 FAULT CODE 04 (Cont'd) FAULT CODE 04 (Cont'd) A B C D E 1 1 1 1 111 130 I I I I I I 140 I I II I I I II I I I I II , I I I I II II I I I I I I I I I I I I I I I 2 2 Replace Formatter ~rite Module. I T ,J.JU ..:.:\ 160 II I I I I I 170 1 j i 180 2 1 ! I 2 I 1 1 190 i 1 I I I I I I I I 1 2 , T I T I I I I F G H I 1 I 1 I 2 I I I I 4 4 I Replace Write Driver Module. (Run Set Up Tests 64, 31.) Replace Wr i te Cable. Replace Formatter Read Module. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace fake-Up Motor/Tach Assembly. (Run Set Up Tests 37, 49, 82.) Replace Power Amplifier Module. FAULT CODE 04 SUB-FAULT CODES 00 01 Unable to write a block in PE within 5 attempts Unable to write a block in GCR within 5 attempts 37 38 Filemark detection error More than 32 write error recoveries performed while u,..;r;nrr ft' '~ ~ ~ ~~o rl"\ '- v a" (YT' u v ... I 1-37 FAULT CODE TROU8L£SHOOfING PROCEDURE FAULT CODE 05 FAULT CODE 05 - LOW SPEED READ ERROR Assumption: TU8l/TA8l displays Fault Code 05 during an Diagnostic Test due to a failure to read a block at low speed, or a data error was detected during a data loopback at low speed. The prooable causes of this fault are dirty head and damaged tape. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 020 2 030 040 050 060 I I 3 I 4 I 5 I 6 I I Clean read-write head, tape cleaner and air bearings. Change tape to a known good write enabled tape. Replace Read Amplifier Module. (Run Set Up Test 31.) Replace Formatter Read Module. Replace write Driver Module. (Run Set Up Tests 64, 31.) Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace Formatter-Write Module. 070 7 080 8 090 9 100 10 Replace Take-Up Motor/Tach assembly. (Run Set Up Tests 37, 49, 82.) I I Replace Read-Write dead. (Run Set Up Tests 64, 31.) Replace Write Cable. I FAULT CODE 05 SUB-FAuLT CODES 00 01 Data error detected while reading in PE (No error recovery performed) Data error detected while reading in GCR (No error recovery performed) 37 Filemark detection error 1-38 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 06 FAULT CODe 06 - HIGrl SPEED WRITE ERROR Assumption: TU81/TA81 displays Fault Code 06 during Diagnostic Test 01 due to a failure to write a block within 5 attempts at nign speed, or due to too many write errors while writing to EOT at high speed. The probable causes of this fault are a dirty head and damaged tape. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 OLa 030 040 050 060 070 080 090 110 120 1 I 2 TI Y I I I I I I I I II I I I I I I I I I I I I I I 2 A Clean read-write head, tape cleaner and air bearings. Change tape to a known good write enabled tapec N Witnout tape threaded, execute Diagnostic Test 03. I Termination Code 98? I Y N Termination Code 96? I I I I I II I I I I I I I I I I I I I I I Y N Termination Code 82? I I I if II y I I I I I I I I I I I I I I I I I I I I I I I I I I I I II I I I I I I I I I I I I I I I I 222 BCD N Termination Code 84? I N Execute Field Service Test 60; I Termination Code any other than OO? I y I I I I I I I I I I I 2 L E F N Execute Field Service Test 58. I Termination Code any other than OO? I Y N I I I I 3 1 I I I I 2 3 I I I I I 2 Execute Field Service Test 59. Termination Code OO? Replace Read Amplifier Module. (Run Set Up Test 31.) Replace Read-Write Head. (Run Set Up Tests 64, 31.) G H 1-39 I FAULT CODE 06 (Cont'd) 130 140 150 160 170 180 190 A B C D E F 1 1 1 1 1 1 I I I I I I I I I I FAULT CODE 06 (Cont'd) G 1 ri 1 I I I I I I I 1 2 Replace Write Driver Module. I I I I (Run Set Up Tests 64, 31.) I I I I I I I I I 4 Replace Write Cable. I I I I I I I I I 1 I 4 Replace Formatter Read Module. I I I I I I I I 2 2 Replace Formatter write Module. I I I T I I I 1 Replace Servo-Control Module. (Run Set Up 1 2 I 2 I T I T I Tests 37, 49, 82, 04, 64, 31.) I I I I 2 1 I 1 Replace Take-Up Motor/Tach Assembly. (Run Set Up I I I Tests 37, 49, 82.) I I I 1 Replace Power Amplifier Module. I I I I I I I I I FAULT CODE 06 SUB-FAULT CODES 00 01 Unable to write a block in PE within 5 attempts Unable to write a block in GCR within 5 attempts 37 38 File mark detection error More than 32 write error recoveries performed while writing to EOT 1-40 FAULT CODt: 07 FAULT COD~ TROUBLESHOOTING PROCEDURE FAULT COD~ 07 - HIGH SPEED READ ERROR Assumption: TU8l/TA8l displays Fault Code 07 during Diagnostic Test 01 due to a failure to read a block at high speed, or a data error was detected during a loopback at high speed. The probable causes of and damaged tape. this fault are dirty head NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 020 2 030 3 040 050 I I I 4 I 5 I Clean read-write head, tape cleaner and air bearings. Change tape to a known good write enabled tape. ~eplace Read Amplifier Module. (Run Set Up Test 31.) Replace Formatter Read Module. Replace Write Driver Module. (Run Set Up Tests 64, 31.) 060 6 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 070 7 Replace Formatter-Write Module. 080 I i I 8 Replace Read-~rite Head. (Run Set Up Tests 64, 31.) FAULT CODE 07 SUB-FAULT CODES 00 01 Data error detected while reading in PE (No error recovery performed) Data error detected while reading in GCR (No error recovery performed 37 File marK detection error 1-41 I FAULT CODE 08 FAULT CODE TROLJBLESHOOTING PROC£DURE FAULT CODE 08 - NOISE IN IBG Assumption: TU8l/TA8l displays Fault Code 08 during an Diagnostic Test due to the detection of noise during an erase operation. An erase operation is used by the error recovery while writing. The probable causes of th is fault are dirty head and damaged tape. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 020 030 040 050 1 I 2 T I I I I I I I I I 070 I I I 090 Change tape to a known good write enabled tape. Y N Execute Field Service Test 60. I I other than OO? 060 080 Clean read-write head, tape cleaner and air bearings. I I I I I I 100 1 110 2 I 120 I Y N Execute Field Service Test 58. I I other than DO? I I I I I I I I I 3 1 I Replace Read Amplifier Module. (Run Set Up Test 31.) I 5 Replace Read-~rite Head (Run Set Up Test 64, 31) I I T I 3 I I I I I I I I 1 2 Replace write Driver Module. (Run Set Up Tests 64, 31.) 4 Re p1ace vir i tee a b1 e . i 2 I I I I I T I Termination Code Y N Unload tape and execute Field Service Test 59. I I Termination Code DO? I I 1 I I I 4 Replace Formatter Read Module. I I I Replace Formatter Write Module. 2 I Replace Servo-Control Module (Run Set Up Tests 37, 49, 82, 04, 64, 31). FAULT CODi 08 SUB-FAULT CODE 00 Termination Code Noise detected while erasing 1-42 FAULr CODe TROUBLeSHOOTING PROCEDURe FAULT conE 09 FAULT CODE 09 - HARDwARE FAILUP£ Assumption: TU81/TA8l displays Fault Code 09 as a result of unit hardware failure. NOTE Following any corrective action, DiagnostIc Test 01 snould be executed. 010 020 030 040 y N I I I i I I 1 Press CE Switch. y N I I y N I II I I 2 I I I 060 1 SUb-Fault Code 03? Replace Formatter ~Jr i te Module" I 1 050 SUb-Fault Code 02? I I Sub-Fault Code Ol? I 1 1 I I 2 Replace Servo-Control Module. (Run Set Up Tests 37,49, 82, 04, 64, 31.) Replace Formatter Read Module. FAULT CODE 09 SUB-FAULT COnES 00 01 02 03 A hardware failure occurred while executing a read/ write diagnostic Formatter Write Module hardware failure Formatter Read Module hardware failure Servo-Control Module hardware failure 1-43 I FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 10 FAULT CODE 10 - OPEKAfOR DOOR OPEN Assumption: TU8l/TA8l displays Fault Code 10 as a result of detecting an open operator door condition. Toe most probable cause of this fault is tne top cover being open. During any normal operation, including execution of diagnostic tests, the top cover must be closed. NOTE Following any corrective action, the door snould be closed and Diagnostic Test 01 should be executed. 010 020 1 I I 2 T 030 I Y 040 I I I I I I I I I I I 050 060 070 ~nsure tnat all interlock switcn leads are unbroken and are firmly connected to the top cover switch assembly. Ensure that all cables are firmly connected to the Servo-Control Module. N I I I I I y N I I I I I I I 1 1 I I I I I I 2 Using a DVM with negative terminal connected to J2 pin 3 of Servo-Control Module, measure voltages on outermost terminals of top cover switch while the top cover is closed. Is voltage difference greater than 0.2 volt? 2 1 Repeat previous operation for innermost terminals. Is voltage difference greater than 0.2 volt? Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Ensure top cover switcn plunger on top cover lines up with top cover switch and will depress switch when top cover is closed. Replace Top Cover Switch Assembly. FAULT CODE 10 SUB-FAULT CODES 01 02 03 04 05 06 07 Door open on load Door open after tensioning Door opened during unload Door open on untensioned unload Door opened during untensioned unload Door opened during retensioned load unload Door open on diagnostic test 1-44 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 11 FAULT COD£ 11 - ABSENCE OF As sumpt ion: TlJ81/ TA8l displays Faul t Code 11 as a resu 1 t 0 f detecting an absence of tape condition during a load operation, or a diagnostic test that requires tape threaded. The most probable cause of this fault is that tape is not threaded. Another possible cause is that tape is threaded witn tape that has oxide removed. NOTE Following any corrective action, a tape load operation should be performed. 010 Y N Disconnect cable from BOT/EaT Sensor Assembly. top cover closed, press LOAD/REWIND switcn. Is Fault Code 11 reported? 020 I I I I ,I I 1 Replace BOT/EaT Sensor Assembly. 030 ,I 1 I I 2 With Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 11 SUB-FAULT CODES 01 02 Absence of tape on load Absence of tape on operator test 2 1-45 I FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 12 FAULT COD~ 12 - LOAD FAULT Assumption: TU8l/TA8l displays Fault Code 12 as a detecting a hub unlatched condition or fault during load operation. result of a tension The most probable cause of this fault is that supply hub was not latcned after mounting a new reel of tape. A possiole cause is that tape being loaded has been subjected to extreme temperature or humidity changes. These tapes can sometimes be recognized by shaking the full reel and hearing tape pack move relative to reel. Also, while loading tape, it will be seen that hub and reel rotate counterclockwise while pack of tape rotates clockwise. To continue using these tapes, the pack requires to be rewrapped at correct tension. This is acnieved by performing a test load operation which wraps all tape onto take-up reel, and tnen returns tape, correctly tensioned, to the supply reel. Other possible causes of Fault Code 12 are: 1. 2. 3. Loading a tape while in tape trailer. Loading a tape with a Jlispositioned or missing BOT marker. The BOT marker should be positioned 16 foot 2: 2 foot from pnysical end of tape. Loading a tape witn EOT/BOT sensor cable disconnected. NOTE Following any corrective action, a tape load operation should be performed. 010 020 1 T Remove supply reel from supply hub and clean hub pads. Y N I I 2 I I Inspect nub latcning mecnanism for breakage or excessive wear. Any problem found? 2 A B 1-46 FAULT CODE 12 (Contld) FAULT CODe 12 (Cont'd) A B 1 030 040 050 060 070 080 I I I I II I I I I I 1 I y I I II I I I 1 I 1 I Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) I I 2 Replace Supply Motor/Tach Assembly. I 3 Replace BOT/EOT Sensor Assembly I I 4 Replace Take-Up Motor Assembly. I I i i I I N Remount reel and latch hub. while holding nub, can I reel be easily rotated in either direction? 1 Replace Supply Reel Hub Assembly. FAULT CODE 12 SUB-FAULT CODE 01 Tension fault on load I 1-47 FAULT CODE 13 FAULT COOt: TROUBLt:StlOOfING PROCEDURE FAULT CODE 13 - TAPt: TtlRt:ADED INCORRECTLY Assumption: TU81/TA81 displays Fault Code 13 during a load operation as a result of not establishing tension within 10 seconds. The most probable cause of this fault is that tape has been threaded with a long loop, or tape has not been tigntly wrapped on take-up hub. NOTE Following any corrective action, a tape load operation snould be performed. 010 020 030 040 050 060 Y I I I I I I I ~ I I I 1 I T I I I I I y I I 070 1 080 2 090 N Execute Field Service Test 43. I start? I I 3 N Does air pressure lift tape off air bearings? I 1 I 2 I 3 Replace Filter. Replace Pump Assembly. Replace Regulator Assembly. N Unthread tape. I displayed? I I I 1 Does pump fail to Push LOAD switch. Fault code 11 Replace BOT/EOT assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace Power Supply Assembly. FAULT CODE 13 SUB-FAULT CODES 01 02 03 Tension not detected on both sensors within 10 seconds Two coarse tachs not detected within 10 seconds Tension not detected within 2 seconds after seeing 2 coarse tachs 1-48 FAULT CODe TROUBLESHOOTING PROCEDURE FAULT CODE 14 FAJLT CODe 14 - BOT LOCATION FAULT Assumption: Tne most probable cause of this fault is that tape leader is too long. ANSI St~ndard X3.39 specifies tnat BOT reflective marker should be placed from 14 feet to 18 feet from physical beginning of tape. NOTE Following any corrective action, a tape load operation followed by an unload operation should be performed. 010 020 1 I I 2 Replace BOT/EDT Sensor Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 318) FAULT CODe 14 SUB-FAULT CODES 01 02 03 Tension fault.Loading.BOT not seen. Absense of Tape.Loading.BOT not seen. Did not get below lower tension limit within prescribed period during unload I 1-49 FAuLT COOt: TROUBLESHOOTING PROCEDURE FAULT CODE 15 FAULT CODE 15 - LOAD/UNLOAD ABORTED BY OPERATOR Assumption: TU8l/TA8l displays Fault Code 15 as a result of load or unload operation being aborted. Toe most probable cause of tnis fault is that operator pressed RESET/FAULT switch during load or unload operation. NOTE Following any corrective action, a tape load operation followed oy an unload operation should be performed. 010 1 020 2 I Replace Operator Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 15 SUB-FAULT CODES 01 02 RESET/FAULT pressed during load RESET/FAULT pressed during unload 1-50 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 16 - Assumption: DIAGi~OSTIC FAULT CODE 16 TAPE IS WRITE PROTECTED TU81/TA81 displays Fault Code 16 on execution of a Read/Write Diagnostic Test with a write protected scratcn tape. The most probable cause of this fault is that the scra tch tape in use does not nave a wr i te enable ring installed. NOTE Following any corrective action, Diagnostic Test 01 should be executed, 010 1 Remove write enable sensor cover plate and ensure T connector is correctly connected to sensor. I 1 020 030 Y N Does write permit ring push reflective ring part of I I Supply Reel Hub Assembly in line with write enable I I sensor? I I I 040 1 050 2 060 3 I I 1 Replace Supply Reel Hub Assembly. Replace Write Enable Sensor Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, ! 82, 04, 64, 31 . ) I Replace Formatter write Module. FAULT CODE 16 SUB-FAULT CODE 00 Attempted to execute a read/write diagnostic witn write protected tape 1-51 I FAlJLf CODE TKouBLeSHOOTIl.~ PROCeDURE FAULT CODE 17 FAULf CODE 17 - RAN OFF fl~D OF TAPt: Assumption: TU8l/TA81 displays Fault Code 17 as a result of running off the physical end of tape. The most probable cause of this fault is that the system continued issuing FORWARD READ/WRITE commands after EOT has been sensed. A possible cause is that trailer is too short (ANSI STD X3.39 specifies trailer should be longer than 25 feet.). NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 Y N Load a known good tape and execute Field Service I I Test 44. Does tape stop within trailer? 020 2 1 I I I 030 I 1 I Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 2 Replace Formatter write Module. FAULT CODE 17 SUB-FAULT CODES 01 02 AOT.trailer.forward BLTL.trailer.forward 1-52 FAULT CODE fROUrlL£SHOO·rING PROCEDURE FAULT CODE 18 FAULT CODE 18 - TAPE ALREADY LOADED Assumption: TU8l/TA8l displays Fault Code 18 as a result of attempting to execute a diagnostic test which requires tape to be threaded only and not at BOT. The most probable cause of this fault is that tape is already loaded while attempting to execute a test that requires tape to be threaded only. NOTE Following any corrective action, a tape load operation or Diagnostic Test 01 should be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 18 SUB-FAULT CODE 00 Attempted to execute Diagnostic Test 1 with tape already loaded I 1-53 FAULT CODE TROUBLESHOOfING PROCEDURE FAULT CODE 20 FAULT CODE 20 - SUPPLY TENSIOcl SENSOR FAULT Assumption: rU8l/TA8l displays Fault Code 20 as a result of a File Tension fault. NOTE Following any corrective action, a tape load operation or Diagnostic Test Jl should be executed. 010 020 030 040 050 060 1 Ensure that cable between Supply Air Bearing Assembly and T Servo-Control Module is correctly connected. I y I I I I I I I I 1 I I 2 N Press CE Switcn. I y I I I I I I I I I 1 SUb-Fault Code OS? N Sub-Fault Code 02 or 04? I y I I I I 1 I I 2 N Disconnect cable between Supply Air Bearing I Assembly and Servo-Control Module at Servo I Control ~odule. Try to load a tape. I Fault Code 20, Sub-Fault Code OS? I I I I 1 Replace Supply Air Bearing Assembly. Reconnect cable. Replace Servo-Control Module. Reconnect cable. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT COOL 20 SUB-FAULT CODES 00 01 02 04 05 Offset comparator is low with mInImum offset Offset comparator is hign with maximum offset 2 oz. detected with no tension Upper tension detected with no tension Did not reach 2 oz. within 100 ms of takeup sensor detecting 2 oz. during load. 1-54 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 21 FAULT CODE 21 - TAKi-JPIENSION SENSOR FAULT Assumption: TU8l/TA8l displays Fault Code 21 as a result of a Take-Up Tension fault. NOTE Following any corrective action. a tape load operation or Diagnostic Test 01 should be executed. 010 1 Ensure that cable between Take-Up Air Bearing Assembly T and Servo-Control Module IS correctly connected. I Sub-Fault Code aS? 020 Y N Press C£ Switch. 030 I I! Y N Sub-Fault Code 02 or 03 or 04? ! I I I I I Y N I I I I I I I I I ! I I I I I I 040 1 050 1 060 2 I ! , 1 I I 1 1 2 I I Disconnect cable between Take-Up Air Bearing Assembly and Servo-Control Module at Servo Control Module. Try to load a tape. Fault Code 21, Sub-Fault Code aS? I Replace Take-Up Air Bearing Assembly. Reconnec t cab le . 1 Replace Servo-Control Module. Reconnect cable. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) I I FAULT CODe 21 SUB-FAULT CODES 00 01 02 03 04 05 Offset comparator is low with minimum offset Offset comparator is high with maximum offset 2 oz detected with no tension 9 oz. detected with no tension Upper tension detected with no tension Did not reacn 2 oz. witnin 100 ms of file sensor detecting 2 oz during load 1-55 I FAuLT GOOE TROU8LESHOOTING PROC£DURE FAULT CODE 22 FAULf CODE 22 - UNABLE TO TENSION rAPE Assumpt ion: TU8l/ TA8l displays Fault Code 22 as a resul t of being unable to maintain tape tension during a tape load operation. The most probable cause of tnis fault is that the tape being loaded has been subjected to extreme temperature or humidity cnanges. These tapes can sometimes be recognized by shak ing the full reel and hearing the tape pack move relative to the reel. To continue using these tapes, the pack requires to be re-wrapped at the correct tension. At the time of reporting the fault, all the tape may have been removed from the supply reel. Recovery for this case will be to re-wrap the tape onto the supply reel (to the BOT side of the EOT marker) and perform a normal load operation. If tape was not removed from the supply reel, a test load operation should be performed to remove tape. NOTE A tape load operation should be performed following any corrective action. During load operation, file reel snould be oDserved for pack slip. 010 020 030 040 050 060 1 I 2 Clean read-write head, tape cleaner and air bearings. Unload tape by pressing UNLOAD switcn while tape is not Remove reel and clean hub pads. T at BOT. I y I I I I I I I I I I N Inspect hub latcning mechanism for breakage or I excessive wear. Any problem found? I Y N Mount reel and latch the hub. while holding hub, I I can reel be easily rotated in either direction? I I I I I I I Y N Press CE Switcn. I I I I I Sub-Fault Code 03 or 04 or 05? Y N Execute Diagnostic Test 02 with tape I I threaded. Termination Code 70? I 2 2 2 A BCD I 2 E 1-56 FAULT CODE 22 (Contid) FAULT CODe 22 (Cont'd) 070 080 090 100 110 120 130 140 150 A B C D 1 1 1 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 II I I I I I I I I I 1 1 1 E 1 I I I I y I Invalid operator sequence. Refer to Diagnostic Test 02 in Section 2. N Termination Code 84? I I Y N Termination Code 92? I I I I I I I I I I I I I I I I I I 1 I I I I I I I 2 Y N Execute Diagnostic Test 03 without I I tape threaded. Termination Code 96 I I I or 98? I I I 2 2 1 Replace Servo-Control Module. (Run T T l Set-Up Tests 37. 49. 82, 04, 54, I I I 31.) 1 1 I 2 Replace Power Amplifier Module. Replace Supply Motor/Tach Assembly. Replace Take-up Motor/Tacn Assembly. (Run Set Up Tests 37,49, 82.) I Replace Supply Hub Assembly. FAULT CODE 22 SUB-FAULT CODES 01 02 03 04 05 Unable to successfully maintain tension during load (Fault is reported after tape is unloaded off EDT). Unable to successfully maintain tension during load (Fault is reported with tape still in tne tape path after failing to find AOT within 30 seconds) Tape slipping on file reel while accelerating during tension recovery Tape slipping on file reel while decelerating during tension recovery Tape slipping on file reel while decelerating during tension recovery/test load 1-57 I FAULT CODE TROUBLESHOOfING PROCEDURE FAULT CODE 23 FAULT CODE 23 - UNABLE TO RE-ESTABLISH TENSION Assumption: TU8l/TA8l displays Fault Code 23 as a result of being unable to re-establish tape tension during a tape load operation. The most probable cause of tnis fault is that the tape being loaded has been subjected to extreme temperature or numidity changes. These tapes can sometimes be recognized by shak ing the full reel and hearing tne tape pack move relative to the reel. To continue using these tapes, the pack requires to be re-wrapped at the correct tension. At the time of reporting the fault, all the tape may have been removed from the supply reel. Recovery for this case will be to re-wrap the tape onto the supply reel (to tne BOT side of the EaT label) and perform a normal load operation. If tape was not removed from the supply reel, a test load operation should be performed to remove tape. NOTE A tape load operation should be performed following any corrective action. During load operation, file reel should be observed for pack slip. 010 020 1 I 2 I Rewind tape onto supply reel and repeat load operation. Mount a new reel of tape and retry load operation. 030 3 Ensure tnat BOT/EaT Sensor Assembly cable is firmly connected. 040 4 Replace Servo Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 050 5 Replace Supply Motor Tach Assembly. I I I I FAULT CODE 23 SUB-FAULT CODES 01 02 03 Unable to establish tension during test load Unable to maintain tension after stopping tape following a test load Unable to re-establish tension after hub latched test 1-58 FAULT COnE 24 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 24 - HIGcl TENSIO~ FAULT Assumption: TU8l/TA8l displays Fault Code 24 as a result of a high tension detected on both air bearings. NOTE Following any corrective action. Diagnostic Test 01 should be executed . . 010 020 y N I I I I I I I 1 Invalid operator sequence. Test 02 in Section 2. y 030 I I I I I 050 060 I I Y N Termination Code 73 or 74 or 92 or 981 I 1 I 3 1 Replace Servo-Control Module (Run Set-Up Tests 37, 49, 82, 04, 64, 31). 2 2 Replace Power Amplifier Module. I 070 Refer to Diagnostic N Termination Code 821 I I 040 Execute Diagnostic Test 02 with tape threaded. Termination Code 701 1 I I Replace Supply Motor/Tach Assembly. FAULT CODE 24 SUB-FAULT CODES, __G_RO_U_P__1_____________________ 00 10 20 30 Fault occurred during constant velocity motion Fault occurred on down ramp Fault occurred on up ramp Fault occurred in stoplock FAULT CODE 24 SUB-FAULT CODES, GROUP 2 00 04 Fault occurred in forward direction Fault occurred in reverse direction 1-59 I FAULT CODE 24 (Cont'd) FAULT CODe 24 (Cont'd) FAULT caDi 24 SUB-FAULT CODES, GROUP 3 00 01 02 Fault occurred with low speed demanded Fault occurred with nigh speed demanded Fault occurred with rewind speed demanded FAULT CODE 24 SUB-FAULT CODES, GROUP 4 00 01 Fault occurred while drive was moving at constant velocity, on ramp, or in stoplock for less than 1 sec. Fault occurred with drive in stoplock for more than 1 sec. FAULT CODE 24 SUB-FAULT CODES, GROUP 5 00 08 Fault occurred with pneumatic pump enabled Fault occurred with pneumatic pump shut down 1-60 FAULT CODE fROlJdLt:SHOOfING PROCEDURE FAULT CODE 25 FAULf CODE 25 - LOw TENSION FAULf Assumption: TU8l/TA81 displays Fault Code 25 as a result of a low tension condition being detected on one of the air bearings. this fault is damaged tape. Should tape be torn, then the fault can occur d~ tape passes over air bearing. Another cause, with stiction tapes, is when tape sticks to read-write nead. Refer to Test 82. Tne most probable cause of NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 020 2 030 040 050 060 I I 3 080 090 100 Change tape to a known good, write enabled scratch tape. Unload tape by pressing UNLOAD switch while tape is not Remove reel and clean hub pads. T at BOT. I Y N Inspect hub latcning mechanism for breakage or I I excessive wear. Any problem found? I i I I I I 070 Clean read-write head, tape cleaner and air bearings. i I I I I I I II I Y N I I I I I I I I I I I I, I I 1 1 I I Remount reel and latcn hub. WOlle n01Qlng hub, can reel be rotated in either direction? Y N Execute Diagnostic Test 03 without tape I I threaded. Termination Code 98? I I I 2 I 1 I I 1 I 2 Replace Power Ampl i f ier Module. Replace Servo-Control Module. (Run Set Up Tests 37,49, 82, 04, 64, 31.) Replace Take-Up Motor/Tach Assembly. (Run Set Up Tests 37,49, 82.) Replace Supply Hub Assembly. 1-61 I FAULT CODE 25 (Cont'd) FAULT CODE 25 (Cont'd) FAULT CODE 25 SUB-FAULT CODES, GROUP 1 00 40 Supply sensor saw the fault first Takeup sensor saw toe fault first FA~LT CODE 25 SU8-FA~LT CODES, GROUP 2 00 10 20 30 Fault occurred during constant motion Fault occurred on down ramp Fault occurred on up ramp Fault occurred in stoplock FAOLf COOt: 25 SUB-FAULT CODES, GROUP 3 00 04 Fault occurred in forward direction Fault occurred in reverse direction FAULT CODE 25 SUB-FAULT CODES, GROUP 4 00 01 02 03 Fault occurred with low speed demanded Fault occurred with nigh speed demanded Fault occurred with rewind speed demanded Fault occurred with slow speed mode demanded FAULT COOE 25 SUB-FAULT CODES, GROUP 5 00 01 Fault occurred while drive was moving at constant velocity, on ramp, or in stoplock for less than 1 sec. Fault occurred with drive in stoplock for more than 1 sec. FAULT CODE 24 SUB-FAULT CODES, GROUP 6 00 08 Fault occurred with pneumatic pump enabled Fault occurred with pneumatic pump shut down 1-62 FAULT COOl TROlJBL~SHOOrING PROCEDURE FAULT CODE 26 FAULT CODe 26 - SERVO FAULT Assumption: TU81/TA81 displays Fault Code 26 as a result of a Servo fault. ~OTE Following any corrective action for Sub-Fault Codes 01 to 06, tape should be threaded onto take-up reel, wound on by hand for approximately 50 turns, and then perform an immed iate Unload wi th tape in this nand-wound condition. For all other SUb-Fault Codes, tape should be loaded and then unloaded. 010 020 030 040 050 060 070 080 090 100 Y II , j 1 I I I I I I I I I I I I, i 110 N I I I 1 I I I I I 2 I T I I I y I I I Press CE Switcn. Sub-Fault Code 09? Ensure all cables to Power Amplifier Module are correctly connected. Ensure all leads to top cover switch are unbroken and correctly connected. N With tape tnreaded, execute Diagnostic Test 02. I Termination Code 70? I I Invalid operator sequence. I Test 02 in Section 2. I Refer to Diagnostic Y N Termination Code 8l? I I I y N Termination Code 82? I I I I 3 3 I I I I 2 I I T T Y 1 I I 2 2 A B I I I 1 I y I I I I 1 N I 1 Termination Code 84? Replace Servo-Control Module (Run Set-Up Tests 37, 49, 82, 04, 64, 31). Replace TaKe-Up Motor/Tach Assembly (Run Set-Up Tests 37, 49; 82). Replace Power Amplifier Assembly. 1-63 I FAULT CODE 26 (Cont'd) 120 A B 1 1 I I 130 I 140 150 160 170 180 190 200 210 220 230 I I I I I I I I I I I I I I I I I I I I I I I 1 I I 2 I 2 FAULT CODE 26 (Cont'd) Replace Supply Motor/Tacn Assembly. I N Witnout tape threaded, execute Field Service I Test 03. Termination Code 84? I I I I I I 1 I I I I I I I I I I Y N Termination Code 96? I I I I I I I Y N Does Take-Up Reel move during execution of I I Field Service Test 03? 1 I I I I I 2 T I 3 Ensure cable is correctly connected to Take-Up Tach. 1 Replace Take-Up Motor/Tach Assembly. (Run Set Up Tests 37, 49, 82.) 2 Replace Read-Write-Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) I I Replace Door Switcn (Interlock). Y N Does Take-Up Reel move during execution of I I Test 03? I I I 2 I I I I I 1 I Replace Door Switch (Interlock). 2 Replace Take-Up Motor/Tacn Assembly. (Run Set Up Tests 37, 49, 82.) 3 Replace Read-write-Servo PwA. I I 240 1 Ensure cable is correctly connected to T~ke-Up Tach. 250 3 Replace Power Amplifier Assembly. I I 1-64 FAULT CODc L6 (Contid) FAULT CODE 26 (Cont'd) fAULT CODE 26 SUB-FAULT CODES 01 02 03 04 05 06 07 08 09 Takeup reel moving in wrong direction during untensioned unload Takeup reel not moving during untensioned unload Takeup reel too fast during untensioned unload faKeup reel too slow during untensioned unload Voltage sensed in wrong half of file reel amplifier bridge wnile pulsing supply reel Timeout to get unwind speed during untensioned unload Voltage sense fault in supply reel amplifier bridge during load Voltage sense fault in takeup reel amplifier bridge during load Fine line tacn fault on load I 1-65 FAULT CODE TROUBL£SHOOTING PROCEDURE FAULT CODE 27 FAULT CODE 27 - NO COARSE fACHS Assumption: TU8l/TA8l displays Fault Code 27 as a result of not detecting any single line tachs from the supply reel. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 Ensure that cable is correctly connected to Supply Motor Tacn. 020 2 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 3l.) 030 3 Replace Supply Motor/Tacn Assembly. I I I I FAULT CODE 27 SUB-FAULT COnES 01 02 03 04 No coarse tacns during load No coarse tachs during tension recovery section of load Two No coarse tachs not detected within 4 seconds during file reel radius calculation File reel radius calculation out of range during load 1-66 FAULT CODE 29 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT COOE 29 - ABSEclCE OF TAPE Assumption: TU8l/ TA81 displays Fault Code 29 as a result of detecting absence of tape. This fault can be caused by tne use of a damaged tape that has oxide missing, such that the BOT and EDT sensors detect lignt passing tnrough the tape. Unloading of tape with result in Fault Code 29. a short leader may also NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 020 030 y I I I 2 T I 1 N Disconnect cable from the EDT/BOT Sensor Assembly. Remove the reel of tape, close operator top cover, press the LOAD switcn. Fault Code ll? 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace BOT/EOT Sensor Assembly. FAULT CODE 29 SUB-FAULT CODE 01 Absence of tape 1-67 I FAuLT CODE TKOUBL.t:SHOOfl.NG PROCeDURE FAULT CODE 30 FAULT CODE 30 - UP RAMP FAULT Assumption: Tu8l/TA8l displays Fault Code 30 as a result of a detected fault on an Up ramp. A possible cause of tnis fault, with stiction tapes, is when tape sticks to the read-write head. Refer to Test 82. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 020 1 Clean read-write head, tape cleaner and air bearings. 'i N T t 030 040 050 060 070 080 090 100 110 120 130 I 1 I I I I I With tape tnreaded, execute Diagnostic Test 02. Termination Code 701 Invalid operator sequence. Test 02 in Section 2. Refer to Diagnostic Y N Termination Code 891 I I I I I I I I I I I I I I I I I I I I I I 2 I Y N Termination Code 721 I I I I I I I I I I I I I I I I I I I I 2 A B I Y N Termination Code 731 I I I I I I I t t I I I I I I I I I 2 C I Y N Termination Code 741 I I t I I I I I I I I I I I I I I Y N Termination Code 751 I I I I I I I I I I I I I I 2 2 D E I Y N Termination Code 841 I I I I I I I I I I I I 2 F I Y I I I I I I I I I I N Termination Code 901 Y N Termination Code 911 Y N I I I I I I I I I 2 2 G rl I I I I I I I 2 I 1-68 fermination Code 921 I Y N without tape threaded, I I execute Diagnostic I I Test 03. Termination I I Code 981 I I 2 2 J K FAULT CODE 30 (Cont'd) FAULT CODE 30 (Gont'd) 140 150 170 180 190 200 ABC D E F J t< 1 1 1 1 111 111 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I i I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I i I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 2 I I I I I I I j I I I I I I I I I I I 2 I I I I I 3 T I I I I I I I I I I I I I I I I j I I I I I i I I I I I 1 ! T ! T I I! T I TIT I III T I III I I I I I I' 2 I I I I I I I I I I I I I I I I I I I I I I I I I tl I I 2 2 14343 220 13434 I 1 240 j 1 210 230 I I I I ! I I G I 113 122 1 I I I I I i I I I I I I 1 ! Y N Termination Code 96? I I I Y N I I I I I I I I If I I I I I I III I I I I I I 1 I 1 I I I I I I I I I I I I 222 Termination Code 8L? N I I 1 I I 2 I I I I 3 Termination Code 84? Replace Power Amp Module. Replace Take-Up Motor/Tach Assy. (Run Set Up rest 38, 49, 82.) Replace Servo Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31) Replace Filter. Replace Regulator Assembly. Replace Pump Assembly. Replace Supply Air Bearing Assy. Replace Take-Up Air Bearing Assy. FAULT CODE 30 SUB-FAULT CODES, GROUP 1 03 04 05 06 07 failed to move 0.12 incn in forward direction within deadman time (detected by stiction test) Failed to move 0.18 incn in forward direction witnin deadman time (detected by stiction test) Failed to reach end of up ramp within deadman time Ramp time less than nominal - 50% (i.e. too fast) Ramp time greater tnan nominal + 5010 (i.e. too slow) 1-69 I FAULf CODe 30 (Cont'd) FAULT CODE 30 (Cont'd) FAULT CODE 30 SUB-FAULT CODES, GKOUP 2 00 20 Fault occurred on forward ramp Fault occurred on reverse ramp FAULT CODE 30 SUB-FAULT CODES, GROUP 3 00 Fault occurred on 25 ips start/stop ramp 10 Fault occurred on 12.5 ips start/stop ramp 40 Fault occurred on 75 ips streaming ramp 1-70 FAULT CODE 31 FAULr CODE TROLJBLESHOOTING PROCEDURE FAULT CODE 31 - DOWN KAMP FAULT Assumption: TU8l/TA8l displays Fault Code 31 as a result of a detected fault on a Down ramp. Refer to Test 82. NOTE Following any corrective action, Diagnostic Test 01 should be executed; 010 020 1 Clean read-write head, tape cleaner and air bearings. I N Witn tape tnreaded, execute Diagnostic Test 02. I Termination Code 70? 1 I T y I 030 040 050 060 070 080 090 100 110 120 130 140 150 160 1 I I I I Invalid operator sequence. Test 02 in Section 2. Kefer to Diagnostic Y N Termination Code 89? I I I I I I I I I II 1 i Y N Termination Code 721 I I I I I I I II I I Y N Termination Code 73? I I I I I I I Y N Terillination Code 74? I I I I I Y N Termination Code 75? I Y N Termination Code 84? I I iii 1 I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I 222 I I I I I I I I I I I I I I I I ABC F I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I j , I I I I I I I I I I I I I I I I I Y N Termination Code 90? I I I I I j iii j , 222 2 2 2 2 222 D E G H I J K L M N 0 t I I I I I I I I I I I I I I I Y N I I I I I I I I I I I I I Termination Code 9l? Y N I I I I I I I I I I I 1-71 Y I I I I I ~ I I I fermination Code 92? N ~ithout tape threaded, execute Diag. Test 03. Termination Code 981 Y 1~ I I I I I Termination Code 961 I 'i N I I I I I I I ferm. Code 82? Y N 2 2 I I ferm. Code 841 I FAULT CODE 31 (Cont'd) A 1 170 I 180 190 200 210 L .N a 1 111 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I III I I I I I I 1 I 1 I I I I I I I I I I I I I I 1 I T 1 1 1 1 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 2 I I I I I I I I I I 2 I I I I I I I 134 2 I 4 2 I I I I I I I 3 3 4 I T I T 1 I I 1 1 T I III I 240 t< E F G H I T I T I 230 J 1 BCD 111 143 220 FAULT CODE 31 (Cont'd) I I 1 I I I I L. I I I I I I I I I I I I 3 , 1 1.'1 222 I 1 Replace Power Amp Module. 2 Replace Take-Up Motor/Tach Assy. (Run Set Up Test 37, 49, 82.) I I I I I I 3 l Replace Filter. Replace Servo Control Module (Run Set Up Tests 37, 49, 82, 04, 64, 31) I I I I I I I Replace Supply Air Bearing Assy. 1 Replace Take-Up Air Bearing Assy. 1 2 I 3 Replace Regulator Assembly. 2 Replace Pump Assembly. FAULT CODE 31 SUB-FAULT CODES, GROUP 1 03 04 05 06 07 Failed to detect cnange of direction (forward to reverse) on forward high speed down ramp Failed to detect change of direction (reverse to forward) on reverse high speed down ramp Failed to reach end of down ramp witnin deadman time Ramp time less than nominal - 50% (i.e. too fast) Ramp time greater than nominal + 50% (i.e. too slow) FAULT CODE 31 SUB-FAULT CODES, GROUP 2 00 Fault occurred on forward ramp 20 Fault occurred on reverse ramp FAULT CODE 31 SUB-FAULT CODES, GROUP 3 00 Fault occurred on 25 ips start/stop ramp 10 Fault occurred on 12.5 ips start/stop ramp 40 Fault occurred on 75 ips streaming ramp 1-72 FAULT CODe TROUBLeSHOOTING PROCEDURE FAULT CODE 32 FAULT CODE 32 - SrOPLOCK OVER-RUN Assumption: TU8l/TA8l displays Fault Code 32 as a result of a Velocity Servo fault. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 y N I I I I Without tape threaded, execute Diagnostic Test 03. Termination Code 96 or 981 020 II Y 030 I I I 040 2 050 060 I I I I 1 070 ()Q() vvv I I I I I 1 N Termination Code 821 f y N I I I 1 I I I I 1 I Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31. ) 2 Replace Power Amplifier Module. I I 3 Replace Take-up Motor/Tach Assembly. 4 I Replace Filter. J L'-I;;; p.L.a .... 1;;; I ~ I 090 Termination Code 841 6 0,..,....1 ... ,....,. Pump Assembly. Replace Regulator Assembly. FAULT CODE 32 SUB-FAULT CODES 04 Position 32 quarter tacns reverse of correct stoplock position Position 32 quarter tachs forward of correct stoplock position Fault occurred wnile in gentle dither mode 10 Fault occurred while in pump snutdown mode 01 02 1-73 I FAULT CODE TR00BLESHOOfING PROCEDURE FAULT CODE 33 FAULT CODE 33 - TAPE POSITIONING FAULf Assumption: TU8l/TA8l displays Fault Code 33 as a result of a Tape Positioning fault when about to write. NOIE Following any corrective action, Diagnostic Test 01 should be executed. 010 020 030 y I I I I I 1 N Remove reel of tape and execute Diagnostic Test 03. I Termination Code 981 I 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace Take-up Motor/Tacn Assembly. (Run Set Up Tests 37, 49, 82. ) FAULT CODE 33 SUB-FAULf CODeS 01 02 Passed erase head turn-on point when about to write at low speed Passed erase head turn-on paint when about to write at high speed 1-74 FAULT CODe 34 FAULT CODE TKOUBLESHOOTING PROCEDURE FAULT CODE 34 - BOT POSITIONING FAULT Assumption: TU8l/TA81 displays Fault Code 34 as a result of toe TU8l/TA8l losing positioning control at Load Point. NOTE 1:0' ..... 11 "'-r... ': ... ,." .&:V.1..1.VW.1.L'5 ~"...,..,..o.,..t-;.7O' ... ,....(7 '-v'-'-~'-'-~v~ aLII ~,..t-;r\1"\ Q'-"'~"'U, Diagnostic Test 01 snould be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODe 34 SuB-FAULT coDes 01 02 Timed out waiting for BOT in forward direction during a Load point iirepositionii. Time out waiting for BOT in reverse direction during a Load point "reposition". I 1-75 FAULT CODE TROUBLeSHOOTING PROCEDURE FAULT CODE 35 FAULT CODe 35 - POSITIONING FAULT Assumption: TU81/TA81 displays Fault Code 35 as a result of the TU8l/TA8l losing positioning control. NOTE Following any corrective action, Diagno&tic Test 01 should be executed. 010 020 030 y I I I I I 1 N Remove reel of tape and execute Diagnostic Test 03. I Termination Code 98? I 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) Replace Take-up Motor/TaCh Assembly. (Run Set Up Tests 37, 49, 82.) FAULT CODE 35 SUB-FAULT CODES, GROUP 1 00 02 Failed to reach target at low speed Failed to reach target at nigh speed FAULT COD£ 35 SUB-FAULT CODES, GROUP 2 00 01 Failed to reach target in forward direction Failed to reaCh target in reverse direction 1-76 FAULT CODE 36 FA0LT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 36 - SP£ED FAULT Assumption: Tu8l/TA8l displays Fault Code 36 as a result of a Speed fault. NOTE Following any Diagnostic executed. 010 020 y I I 1 030 OSO 060 I I I 080 090 100 110 120 130 140 Invalid operator sequence. in section 2. N Termination Code 891 I I I Y N I I I I I Y I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 2 I I I I I I I I I I I 070 01 action, should be N with tape threaded, execute Diagnostic Test 02. I Termination Code 70? Y 040 corrective Test I 2 2 A 8 Refer to Diagnostic Test 02 Termination Code 72? N Termination Code 73? I Y I I I I i I I I I I I I I I I I I l I I I 222 C D t: N Termination Code 74? I Y N Termination Code 751 I I i I I I I I I I I I I I I 2 I I I 2 F I Y N Termination Code 841 I I I I I I I I I I 1 I I ') So- 2 i 'I. N Termination Code 90? I I I Y I I I I I I I I I I I I I I I I I I l 3 I T I I I I N Termination Code 9l? I i N I I I I I I I I I I I I 2 2 2 G tl I J 1-77 1 Iermination 921 Go to step 010 of Fault Code 04. Replace Take-Up Motor/Tach Assy (Run Set Up Test 37, 49, 82). Replace Servo Control Module (Run Set Up Test 37, 49, 82, 04, 64, 31). I ------------------------- FAULT CODe 36 (Cont'd) FAULT CODE 36 (Cont'd) A B C D E F G H I J 1 1 1 1 1 1 1 1 1 1 I I I 2 I I I 4 I T I I I I I I 150 160 I 170 3 I 180 1 190 1 I I I 1 2 I I 3 4 4 3 3 I T I T I I I 1 4 T 1 1 I I I I I 1 Replace filter. I I I I 1 3 Replace Regulator Assembly. I I T I 2 2 Replace Pump Assembly. I I Replace Supply Air Bearing Assembly. I Replace Take-Up Air Bearing Assembly. FAULT CODE 36 SUB-FAULT CODES 00 04 excessive speed when running at low speed Speed too slow when running at high speed 1-78 FAULT COD~ TROUBLESHOOfING fROCEDURE FAULT CODE 37 FAULT CODE 37 - PUMP POwER-UP FAULT Assumption: TU81/TA81 displays Fault Code 37 as a result of not being able to re-establish tension within 5 seconds of pump power-up. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) OLO 2 Replace Power Amplifier PWA. 030 i I I 3 Replace Supply Motor/Tach Assembly. FAULT CODE 37 SUB-FAULT CODE 01 Unable to re-estaolish tension within 5 seconds I 1-79 FAULT CODE TROuBLESHOOTING PROCEDURE FAULT CODE 41 FAULT CODE 41 - DEVICt PROCESSOK ILLOGICAL FAULT Assumption: TU8l/TA8l displays Fault Code 41 as a result of a Servo-Control Module Microprocessor Stack Overflow fault. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 3l.) FAULT CODE 41 SUB-FAULT CODE 01 02 03 04 Hardware stack underflowed Hardware stack overflowed User stack under flowed User stack overflowed 1-80 FAULT COD~ fROUBLf:SHOOTING PROC£DURE FAULT COOt: 42 FAULf CODE 42 - HIGrl TEMPERATURE LIMIT EXCEEDED FAULT Assumption: TU8l/TA81 displays Fault Code 42 when the drive has exceeded the upper temperature limit. Tnis fault can result from a malfunction of eitner the axial cooling fan on the cabinet frame or the centrifugal cooling fan on the power supply cover. The flashing of this fault code indicates that the temperature nas exceeded the upper limi t. On-l ine operation is not affected. RESET, REWIND, and UNLOAD are the only functions that can be executed while this fault is present. NOTE 010 Following any corrective action, Diagnostic Test 01 should be executed,. i C~Il~~ PWrL. ~'-l('('L!i CA b{J2,. ~~ Senvo ~-t not-. YY\od'""-'l...e.. 1 Replace axial fan on cabinet frame. 020 2 * 030 040 050 I I 3 I 4 I 5 I • Replace centrifugal fan on power supply cover. Replace temperature sensor on card cage. Replace power supply. Replace Servo-Control Module (Run Set-Up Tests 37, 49, 82, 04, 64, 31). FAULT COOl 42 SUB-FAULT CODE N/A 1-81 I FAULT CODE TROUBLiSHOOTING PROCEDURE FAULT CODE 43 FAULT COO~ 43 - HIGH TEMPEaATUR£ LIMIT EXCEEDED FAULT Assumption: TU8l/TA8l displays Fault Code 43 when the drive has exceeded the upper temperature limi t for more than 10 minutes. NOTE Following any corrective action, Diagnostic Test 01 should be executed. Replace axial fan on cabinet frame. 010 1 020 2 Replace centrifugal fan on power supply cover. 030 3 Replace temperature sensor on card cage. 040 4 050 5 I I I I Replace power supply. Replace Servo-Control Module (Run Set Up Tests 37, 49, 82, 04, 64, 31. ) FAilLT CODE 43 SUB-FAULT CODES 01 Upper temperature has been exceeded 1-82 FAULT CODi TROUBLESHOOTING PROCEDURE FAULT CODf 44 Assumption: U~Ir FAULT CODe 44 IDENTIFIER FAULT T1181/TA81 displays Fault Code 44 resulting from a unit identifier fault. NOTE Following any corrective action, Diagnostic Test 01 should be executed. FAULT CODE 44 SUB-FAULT CODES 010 01 02 2201A back-up memory cnecksum fault Test 49 must be executed prior to entering the unit identifier 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) I 1-83 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 47 FAULT CODe 47 - VELOCITY COKR.ECTIOJ.~ FAULT Assumption: rU8l/TA8l displays Fault Code 47 resulting from a Velocity Correction Calculation fault. Tnis fault can De caused by the velocity correction factor in the baCk-Up memory being corrupted. Should tnis be toe case, the Power-on Health Check should fault, displaying Fault Code 51. To overcome tnis problem, Field Service Test 37 could be executed. However, if all precautions are taken, toe back-up memory should never be corrupted. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 47 SUB-fAULT CODE 01 Speed correction multiplier in the backup memory is out of range 1-84 FAULT CODE TROu8L~SHOOfING PROCiDUR£ FAULT CODE 48 FAULT CODE 48 - UNLOAD FAULT Assumption: TU81/TA81 displays Fault Code 48 resulting from an Unload fault. This fault can be caused by a dama6ed tape leader. NOTE Following any corrective action; tape snould be loaded and unloaded again. 010 1 020 2 030 040 050 060 070 I T Clean Read-Write Head, tape cleaner and air bearings. Change tape to a known good tape. Y N Witnout tape threaded, execute Diagnostic Test 03. I I Termination Code 981 I I I I I I I I 1 I Y N Termination Code 961 I I 2 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) I I I 2 Replace Supply Motor/Tach Assembly. 1 I I I Replace Take-up Motor/Tach Assembly. (Run Set Up Tests 37, 49, 82 .. ) FAULT CODe 48 SUB-FAULT CODE 01 Did not find AOT within 6 seconds of losing tension on unload 1-85 I FAULT CO.DE TROUBLESHOOTll~G PROCeDURE FAULT CODE 50 FAULT CODE 50 - IRR£COVERABLE DEVICE HEALTH CHECK FAULT Assumption: TUBI/TABI displays Fault Code 50 as a result of a Servo-Control Module Health Check fault. NOTE Following any corrective action, the unit should be powered off and on again. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 50 SUS-FAULT CODES 01 02 03 04 05 OB Servo-Control diagnostic PROM checksum fault Servo-Control flag memory fault Servo-Control PTM II fault Servo-Control PTM I fault Servo-Control RAM fault Servo-Control functional PROM checksum fault 1-86 FAULT CODE 51 FAULT CODe TROUBLESHOOTING PROCEDURE FAULT CODE 51 - RECOVERABLE DEVICE HEALTH CHECK FAULT Assumption: rU81/TA81 displays Heal th Check. Fault Code 51 during Power-On A possible cause of tois fault is that tne write enable jumper protects been left on the Servo-Control the "STOR.E" the contents of In Module, which Should this toe back-up memory, has position. have occurred, the back-up memory should be re-initialized as described in Servo-Control Module Verification Check in tne Removal and Replacement section of the Pocket Service Guide. NOTE Following any corrective action, the unit Should be powered off and powered on again. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 51 SUB-FAULT CODES 01 02 2201 EEPROM Checksum fault 2210 EEPROM checksum fault 14 DAC fault 1-87 I FAULT CODE TROUBLESHOOTING PROC£DURE FAULT CODE 5£ FAULT CODE 52 - SPEeD CALCULATION FAULT Assumption: TU81/TA81 displays Fault Code 52 as a result of a Radius Calculation fault. A possible cause of this fault is that BOT reflective marker is not positioned correctly. ANSII Standard X3.39 specifies that the BOT marker should be placed from 14 feet to 18 feet from the physical beginning of tape. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 020 030 040 050 1 Check BOT marker position or try a new tape. y N j j I I T I I I I I y N I I I I I I I I I I I I I I 1 2 j 060 070 080 Witnout tape threaded, execute Diagnostic Test 03. Termination Code 981 I 2 I I 1 I I Remove tape reel and clean hub pads. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 3 Replace Supply Motor/Tach Assembly. 4 Replace Supply Reel Hub Assembly. I 1 Termination Code 961 Replace Take-Up Motor/Tach Assembly. (Run Set Up Tests 37,49, 82.) FAULT CODE 52 SUB-FAULT CODES, GROUP 1 10 20 40 80 A previous fault caused by modulus being too large A previous fault caused by modulus cnange inconsistent with direction of tape A previous fault caused by modulus being outside expected range Unable to obtain consistent harvest counts in determining the file reel radius 1-88 FAULT CODE 52 (Cont'd) FAULT CODE 52 (Cont'd) FAULT COOt: 52 SUB-FAULT CODES, GROUP 2 01 02 04 08 This fault caused by modulus being too large This fault caused by modulus change inconsistent with direction of tape This fault caused by modulus being outside expected range This fault caused by harvest count gr ea ter than 8000 I 1-89 FAULT CODE TROUBLESHOOTING PROCEDURE FAULf CODE 53 FAULT CODE 53 - ARI ffu"1EfrC ERROR Assumption: rU8l/TA8l displays Fault Code 53 as a result of a Radius Calculation Arithmetic error. NOTE Following any corrective action, Diagnostic Test 01 should be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 53 SUB-FAULT CODES 01 02 03 04 Attempt to divide by 0 Integer overflow on floating point to integer conversation Negative result on floating point subtraction Radius calculation during load out of range 1-90 FAULT CODE 54 FAULT CODe TROUBLESHOOfING PROCEDU~E FAULT CODE 54 - ERASE/wRITE CuRRENT FAULT Assumption: TU8l/TA81 displays Fault Code 54 as Write/Erase Current fault. a result of a NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 020 Y N Press CE Switch. I 1 1 I I 030 3 040 4 I I I 050 060 I I Replace write Driver Module (Run Set Up Tests 64, 3 Replace Servo-Control Module (Run Set Up Tests 37, 49, 82, 04, 64, 31). 2 Replace Read-Write Head Assembly. (Run Set Up Tests 64, 31.) 5 Replace write Cable. I I 3l)~ Replace Read Amplifier Module. (Run Set Up Test 31.) 2 I Sub-Fault Code 04 or 10? FAuLT CODE 54 SUB-FAULT CODES 02 04 08 Erase current present after degauss write current present when degauss Write current not present when wr i ting write current pr esent when reading 10 Erase current not present when writing 20 Era.se current pr esent when reading r\, V.L 1-91 I FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 55 FAULT CODE 55 - ILLOGICAL FAULT Assumption: TU8l/TA8l displays Fault Code 55 as a result of the Servo-Control microprocessor timing out during a Rewind or Load-Rewind operation. NOTE Following any corrective action, Diagnostic Test 01 snould be executed. 010 1 Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT COD~ 55 SUB-FAULT CODeS 01 02 Failed to reach BOT within specified time during load Failed to reacn BOT within specified time during rewind 1-92 FAULT CODE TROUBLeSHOOTING PROCEDURE FAULT CODE 56 FAULT CODE 56 - PROCESSOR C8MMUNICATION FAULT Assumption: TU8l/TA8l displays Fault Code 56 as a result of a communication problem between the Servo/Control microprocessor and Formatter Write microprocessor. NOTE Following any corrective action, device DC power should be turned off and then turned on, followed by tne execution of Diagnostic fest 01. 010 1 Ensure toat toe cable between the Formatter Write Module and Servo-Control Module is firmly connected. 020 2 Ensure that the DC power connector is firmly connected to the Formatter write Module. 030 Y N 040 2 O~O 3 060 I I I I I I I 1 I Controller Fault? Replace Formatter Write Module. T I Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) 1 Replace TMSCP/fU8l or STI/fA8l Module. I 2 I 3 FAULT CODE 56 SUB-FAULT CODES 01 02 03 04 05 06 07 08 09 10 11 12 13 19 20 L2 MOVE fAG or COMMAND TAG or STATUS/DATA did not get reset I~TERRUPT or MOVE TAG did not get set ACK~OwLEDGE or CO~~ND TAG did not get set BUSY or STATUS/DATA did not get set BUSY or STATUS/DATA did not get reset INTERRUPT or MOVE TAG did not get reset AC~~OWLEDGE or CO~~~D TAG did not get reset ACKNOWLEDGE or COMMAND TAG did not get set DATA STROBE did not get reset DATA STROBE did not get set BUS INTEGRITY test fault PRIMARY STATUS test fault PIAll PORT A test fault Formatter nealth check did not complete witnin 20 msec Formatter did not respond to interrupt within 1 second Number of bytes transferred exceeded 32 during tests 95 or 99 1-93 I FAULT CODe TROUBLESHOOTING PROCEDURE FAULT CODe 60 FAULT CODE 60 - IRRECOVERABLE OPERATOR PANEL FAULT Assumption: TU81/TA81 displays Fault Code 60 as the result of a functional control panel switch being closed during Power-On dealth Check. Th is faul t can also be generated if any of the ON-LINE or RESET/FAULT LOAD/REWIND, UNLOAD, switches are depressed for 15 seconds during the Power-On Healtn Check. NOTE Following any corrective action, TU8l/rA8l snould be powered off powered on again. 010 020 030 1 I I 2. I 3 the and Check control panel functional switches and repeat the Power-On Health Check. Replace Control Panel Assembly. Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 3l.) FAuLT CODe 60 SUB-FAuLT CODE 00 LOAD/REwIND or UNLOAD or ONLINE or RESET/FAULT switCh permanently pressed 1-94 FAULT CODE fROUBLESHOOTING PROCEDURE FAULT CODE 61 Assumption: RECOVE~BL£ FAULT CODE 61 OPEKATOR PANEL FAULT TU81/TA81 displays Fault Code 61 as the result of a diagnostic operator panel switch being closed during Power-On Health Check. This fault can also be generated if any of the 'IlST, STEP, CE or lXECUTE swi tch es ar e depr essed fl"'\r 15 seconds dur ing the Power-On Heal th Check. Should tnis fault occur, normal on-line operation of the TU8l/TA8l is available after pressing the RESET switcn. However, the use of TU8l/TA8l diagnostics will not be made available. NOTE Following any corrective action, 'IU8l/TA8l should be powered off powered on again. the and f Check control panel diagnostic switches and repeat the Power-On Health Check. 020 2 Replace Control Panel Assembly. 030 3 010 1 I I Replace Servo-Control Module. (Run Set Up Tests 37, 49, 82, 04, 64, 31.) FAULT CODE 61 SUB-FAULT CODE 00 TEST or STEP or CE or EXEC switch permanently pressed 1-95 I FAULT CODE fROUrlLiSHOOfING PROCEDURE FAULT CODE 62 Assumption: Foru1ATr~R FAULT CODE 62 WRITE MODUL~ HEALTH CHECK TU81/ fA8l displays Fault Code 62 as a result of Formatter Write Module tiealth Cneck fault. ~OTE Following any corrective action, the unit snould be powered off and powered on again. 010 1 Replace Formatter Write Module. FAULf CODE 62 SUB-FAULT CODES 00 01 02 03 04 05 Power up flip/flop could not be reset Write data transfer did not complete within specified time Residual byte count cheCK CRe generator parity error 4 to 5 conversion parity error AUX CRe generator parity error 11 12 13 14 IS 20 ALul signal not functional ALUZ 2 signal not functional ALUN signal not functional Arithmetic operation failed Logical operation failed Microprocessor internal RAM fault 31 32 33 34 35 36 Wr ite checksum fault write checksum fault Wr ite Checksum fault Write checksum fault Wri te cnecksum fault Write checksum fault 40 41 42 43 44 45 46 LAST WORD signal stuck high MOVE TAG signal not functional COMMAND TAG signal not functional STATUS/DATA TAG signal not functional GCR status signal not functional HIGa SPEED (HSPD) status signal not functional FLAG bit not functional (IC E17) (IC E18) (IC E19) (IC G17) (IC G18) (IC G19) 1-96 FAULT CODE 62 (Cont'd) FAULT CODE 62 FAULT CODE 62 SUB-FAULT CODES (Cont'd) 47 49 One of the formatter status bits to the interface board not functional One of tae device status bits to the interface board not functional Microprocessor parity generator not functional 51 52 53 DATA STROBE signal from timer not functional Variable timer not functional Fixed timer (one-shot) not functional 48 61 4 to 5 converter failed 63 64 ecc generator failed CRG generator failed AUX eRe generator failed 71 72 73 wRITE FIFO AVAILABLE signal not functional wRITE DATA TRANSFER COMPLETE signal not functional WRIfE TRANSFER CrlECK signal not-functional 81 82 83 Sense data path failed Device data path failed READ INVERT signal failed 62 I 1-97 FAULf CODE TROUrlLESHOOTING PROC£DURE FAULT CODE 63 FAULT CODi 63 - FORMATTt:R READ/WRIfE INTERFACE HEALTH CHECK FAULT Assumption: TU81/TA81 displays Fault Code 63 as a result of Formatter Read-Write Interface Health Check fault. NOTE Following any corrective action, the unit should be powered off and powered on again. 010 1 t I 020 2 t 030 3 Ensure that toe Formatter Read and Formatter Write Module's are firmly connected. Replace Formatter Read Module. Replace Formatter write Module. FAULT CODE 63 SUB-FAULT CODES 01 02 03 04 05 06 07 08 09 Read failed to go busy Read stuck busy Read detected an error Read detected an error Error occurred during a Data loopback wRITE FIFO AVAILABLE signal not functional Data compare error Write data transfer did not complete within specified time write transfer check 11 12 13 14 Read failed to go busy Read stuck busy Read detected an error Read detected an error 21 22 23 24 25 26 27 28 29 READ GATE signal not functional GCR ID signal not functional FMK DET signal not functional READ INTR signal not functional READ C£R signal not functional BLOCK DET signal not functional DATEN signal not functional READ GATE signal failed with no interrupt set Read buffer was empty with interrupt set 1-98 FAULT CODE 63 (Contid) FAULT CODE 63 FAULT CODE 63 SUB-FAULT CODES ,Cont'd) 30 31 32 33 34 35 36 37 38 39 READ TAG signal not functional BYP VFO signal not functional REV signal not functional GCR signal not functional RAW signal not functional HSPD signal not functional SENSE signal not functional DIAG signal not functional SPACE signal not functional WFM signal not functional 40 41 42 43 ERASE signal not functional ID signal not functional READ signal not functional DSTR signal not functional I 1-99 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 64 FAULT CODE 64 - FO&1AfTER READ MODULE HEALTH CHECK FAULf IN DATA LOOPBACK Assumption: TU8l/TA81 displays Fault Code 64 as a result of Formatter Read Module Health Check fault in data loopback. NOTE Following any corrective action, the unit should be powered off and powered on again. 010 1 020 2 I Replace Formatter Read Module. Replace Formatter Write Module. FAULT CODe 64 SUB-FAULT CODES 11 12 13 Read cnecksum fault (IC 03) Read checksum fault (IC 02) Read cnecksum fault (IC 01) 21 22 23 24 25 26 Read failed to go busy during sense operation Read stuck bUsy during sense operation Read detected an error during sense operation Read detected an error during sense operation No sense read data Excess sense read data 31 32 41 42 43 44 45 46 Read failed to go busy during self-diagnostics Read stuck busy during self-diagnostics Read failed to go busy during ID operation Read stuck busy during ID operation Read detected an error during PE ID operation Read detected an error during GCR 10 operation READ GATE signal failed during ID operation GCR 10 signal failed during 10 operation 51 52 53 54 Read failed to go busy during a write file mark operation Read stuck busy during a write file mark operation Read detected an error during a write file mark operation Read detected an error during a write file mark operation 1-100 FAULT CODE 64 (Contld) FAULT CODE 64 FAULT CODE 64 SUB-FAULT CODES (Contld) 55 56 57 61 62 63 64 65 66 71 72 73 74 81 82 83 84 85 86 87 91 92 93 FMK DET signal was stuck high FMK 0 ET s i g n a 1 \oJ as not set d uri n gaP E wr i t e f i 1 e ma r l< operation FMK DET signal was not set during a GCR write file mark operation Read taIled to go busy during a space operatIOn Read stuck busy during a space operation Read detected an error in PE during a space operation Read detected an error in GCR during a space operation BLOCK DEf signal was not detected during a space operation READ GATE signal was not detected during a space operation Read failed to go busy during a read-after-write operation at high speed Read stuck busy during a read-after-write operation at nigh speed Read detected an error in PE during a read-after-write operation at high speed Read detected an error in GCR during a read-after-write operation at high speed Re ad fa i 1 ed tog 0 bus y d uri ng are ad wit h d a t a com par e operation Read stuck busy during a read witn data compare operation Read detected an error in PE during a read with data compare operation Read detected an error in GCR during a read with data compare operation Read buffer was empty during a read with data compare operation Data compare error in PE detected by write Data compare error in GCR detected by write Read f ailed to go busy during a read-after-write operation using VFO. Read stuck bUSy during a read-after-write operation using VFO Read detec ted an error in Pt: during a read-after-wr i te operation using VFO. Re add e tee ted an err 0 r in during a read-after-write operation using VFO. 1-101 I FAULT CODE. TKOl1BLt:SHOOfiNG PROCt:DURE FAULT CODE 65 Assumption: FOfu~rTER FAULT CODE 65 READ BOARD HEALfH CHECK FAULT TU81/TA8l displays Fault Code 65 as a result of Formatter Read Module Health Check fault. NOTE Following any corrective action, the unit should be powered off and powered on again. 010 1 Replace Formatter Read Module. FAULT CODE 65 SUB-FAULT CODES 11 12 13 14 15 ALUl signal not functional ALUZ signal not functional ALUN signal not functional Arithmetic operation failed Logical operation failed 20-22 Microprocessor internal RAM fault 30 31 32 33 DATA STROBE signal stuck oign DATA STROBE signal stuck low Variable timer fault Variable timer overflow fault 40 41 42 43 One of toe flag bits cannot be set One of the flag bits cannot be reset Microprocessor parity generator fault Microprocessor parity generator fault 51 52 53 54 Illegal count fault (contained witoin deskew buffer) Read transfer check not functional Read data buffer input parity error not functional Illegal count could not be reset by ILLEGAL COUNT ENABLE signal 60 Error correction logic did not correct data properly 61 30RGT signal not functional 62 SGL PNTR, SGL CORR, or MLT PTR signal not functional 63 DUAL signal not functional 64 'Error correction pointer from error correction logic was incorrect 1-102 FAULT CODe 65 FAULT CODE 65 (Contid) FAULT CODE 65 SUB-FAULT CODES (Cont'd) 69 DUAL CaRR signal not functional ECCZ signal not functional VRCZ signal not functional Error correction did not complete (ECDONE clock cycles UNCORR signal not functional 70 71 72 73 74 75 generator failed CRC generator failed AUX CRe generator failed eCC generator failed in reverse mode CRC generator failed in reverse mode AUX CRC generator failed in reverse mode 80 81 82 83 84 DATA BLOCK signal not functional 70RGT signal not functional GCR TM signal not functional PROM address for block PKOM (IC C13) not functional ANY BLOCK signal not functional 91 92 93 Deskew buff~r READY signal not functional DEAD TRACK signal from a deskew buffer not functional BUFFER READY signal did not set for all dead track conditions. 65 66 67 68 1) in nine ECC I 1-103 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 66 (TU81) FAULT CODE 66 - FORMATTER/TMSCP INTERFACE HEALTH CHECK FAULT (TU81) Assumption: TU8l displays Fault Code 66 as a Formatter/Interface Health Check fault. result of NOTE Following any corrective action, the unit should be powered off and powered on again. 010 Y N Press CE Switch. I Sub-fault Code 047. I I 1 Replace TMSCP Module. I I 020 030 I 2 Replace Formatter Write Module. 040 1 Disconnect TU8l from system. (Note: Sub-faul t Code 04 can occur when attempting to execute a diagnostic while the TMSCP Module is on-line to the system. The I/O cable should be disconnected before attempting to run TMSCP diagnostic.) FAULT CODE 66 (TU81) SUB-FAULT CODES 00 01 02 03 04 Adapter interface did not respond to a diagnostic request Command from adapter contained a parity error Command from adapter was incorrect Adapter health check timeout TMSCP online to the system 11 12 13 14 15 16 17 18 19 Command register bit in error DATA BUSY signal not functional Write data bus check failed No data was received during write data bus check LAST WORD signal not functional Excessive data was received during write data bus check Adapter detected an error during write data bus check During read data bus check, the TRANSFER COMPLETE signal stuck high. Adapter detected an error during read data bus check 20 STATUS SELECT signal not functional 1-104 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 66 (TABl) FAULT CODE 66 - FORMATTER/STI INTERFACE HEALTH CHECK FAULT (TABl) Assumption: TABI dis~lays Fault Code 66 as a Formatter/Interface Health Check fault. result of NOTE Following any corrective action, the unit should be powered off and powered on again. y 010 I 020 N Press CE Switch. Sub-fault Code 04? I Replace STI Module. I I 030 Replace Formatter Write Module. I, Release Port A and Port B switches and wait until ONLINE 1 2 040 1. indicator goes out. (Note: Sub-fault Code 04 can occur when attempting to execute a diagnostic while either Port switch is pressed, or either Port is still ONLINE to the system, shown by a lit ONLINE indicator.) FAULT CODE 66 (TA8l) SUB-FAULT CODES 00 Adapter interface did not respond to a diagnostic request 01 02 03 04 Command from adapter contained a parity error Command from adapter was incorrect Adapter health check timeout STI online to the system or port switch enabled 11 19 Command register bit in error DATA BUSY signal not functional Write data bus check failed No data was received during write data bus check LAST WORD signal not functional Excessive data was received during write data bus check Adapter detected an error during write data bus check During read data bus check, the TF~NSFER COMPLETE signal stuck high. Adapter detected an error during read data bus check 20 STATUS·SELECT signal not functional 12 13 14 15 16 17 18 1-104A/B FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 67 (TU8l) FAULT CODE 67 - TMSCP INTERFACE MODULE HEALTH CHECK (TU8l) Assumption: TU8l displays Fault Code 67 as a result of Interface Module Health Check faul t. LESI Module is powered up. NOTE Following any corrective action, the unit should be powered off and powered on again. 010 y 020 I I I N Y Sub-fault Code 40-59/83-92? I I I 030 N Press CE Switch. I I I 040 I y I I I I I Sub-fault Code 80? N Disconnect I/O cable from TU8l. I Test 57. Termination Code 67 ? I 1 Replace LESI Module or I/O cable. 050 1 1 060 2 Replace operator's front panel. I 1 Replace TMSCP Module. FAULT CODE 67 (TU8l) SUB-FAULT CODES 01 02 03 04 05 06 07 08 09 Stack Ram parity error FIFO parity error FIFO Controller not initialized FIFO full signal not functional FIFO full and overflow bits are set FIFO overflfow bit not set SEND DATA signal not initialized RAM parity error FIFO data miscompare 10 11 12 13 16 17 18 19 FIFO parity parity error FIFO data miscompare FIFO parity parity error FORMATTER ENABLE bit not set Host byte counter not preset to all zeros Tape byte counter not preset to all zeros Host byte counter not preset to all ones Tape byte counter not preset to all ones 1-105 Run Diagnostic FAULT CODE 67 (Cont'd) FAULT CODE 67 (TU8l) (TUBl) FAULT CODE 67 (TU8l) SUB-FAULT CODES (Cont'd) 20 27 28 29 Host/Tape byte counters not preset to Shifting ones Formatter HER/CER Host byte count not 0 Parity errors/overflow/overrun 30 31 35 36 Tape byte count not correct Data mis-compare on formatter Rx/Tx Compare error Incorrect compare error byte count Data transfer from Host to FIFO 41 42 43 44 45 46 47 48 49 50 Data pattern AA55 - Help code not 13 Data pattern AA55 - Help bit not reset Data pattern AA55 - Byte count not 0 Data pattern AA55 - Data miscompare Data pattern P-_A.55 - FIFO parity Data pattern 55AA - Help code not 13 Data pattern 55AA - Help bit not reset Data pattern 55AA - Byte count not 0 Data pattern 55AA - Data miscompare Data pattern 55AA - FIFO parity Data transfer from Host to FIFO - B~te SwaE 51 Data pattern AA55 - Help code not 13 ~') J'- AA.~~ Data pattern .I:'1.n.JJ 53 54 55 56 57 58 Data pattern AA55 Byte count not 0 Data pattern AA55 - Data miscompare Data pattern AA55 - FIFO parity Tl signal is not functional LES! status has error bit set LES! parity error U ...... 1 ..... - .L.u::..L.P h.~+- LolLI.. T"'I"'+- .L~VI.. reset Data transfer from FIFO to Host 60 61 62 r.:. ? V...J Data pattern 55AA - Help code not 09 Data pattern 55AA - Data miscompare Data pattern 55AA - LESI parity error T"'! ...., +- .., ua. I.. a. '-' .-, f- ......--. ~~ J!a. .... ""'I:::.l..U c:: c:: A .\ ...J...J~ k'Tt:''' J....L.J.. v ~!""\+- iolV I.. 1-106 empty I FAULT CODE 67 (Cont'd) (TU81) FAULT CODE 67 (TU81) FAULT CODE 67 (TU81) SUB-FAULT CODES (Cont'd) Data transfer from FIFO to HOST 64 65 66 67 68 69 70 71 72 80 Data pattern AA55 - Help code not 09 Data pattern AA55 - Data miscompare Data pattern AA55 - LESI parity error Data pattern 55AA - Help code not 09 Data pattern 55AA - Data miscompare Data pattern 55AA - LESI parity error Odd Byte - Help code not 09 Odd Byte - Data miscompare Odd Byte - No LESI parity error UART status or Data miscompare on ASCII port Data transfer from RAM to LESI 83 84 85 86 Data Data Data Data pattern AA55 pattern AA55 pattern AA55 pattern AA55 - Help code not 09 Data miscompare Byte count not 0 Errors Data transfer from LESI to RAM 88 89 90 91 92 93 94 95 Data pattern 55AA - Help code not 13 Data pattern 55AA - Help active Data pattern 55AA - Byte count not 0 Data pattern 55AA - Data miscompare Data pattern 55AA - Errors Timer failed Timer interrupt not occurred on time out Timer interrupt occurred before time out 1-106A FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 67 (TUB1E) FAULT CODE 67 - BUFFERED TMSCP INTERFACE MODULE HEALTH CHECK (TU81E) Assumption: TU81E displays Fault Code 67 as a result of Interface Module health Check fault. LESI Module is powered up. NOTE Following any corrective action, the unit should be powered off and powered on again. 010 020 030 y N Press CE switch. Sub-fault code 55? ! I I N Y Sub-fault code 56-82? i i i 1 1 1 Replace buffered TMSCP module. II 040 I 050 2 Replace operator's front panel. ! 2 Replace LESI module or I/O cable. I FAULT CODE 67 (TU81) SUB-FAULT CODES ROM-RAM Check 01 ROM parity error set 02 No ROM parity error 03 04 05 06 07 Data not equal to zero Data miscompare data pattern AA55, 55AB, AB55 RAM parity error set RAM parity error No RAM parity error Buffer Check 09 10 11 12 13 14 15 16 DMA port A data miscompare DMA port B data miscompare Input ready not set Output ready not set Buffer full not set Buffer overflow set Buffer overflow not set Output ready not set 1-106B I FAULT CODE 67 (Cont'd) (TU81E) FAULT CODE 67 (TU81E) FAULT CODE 67 (TU81E) SUB-FAULT CODES Buffer Check (Cont'd) 17 Buffer empty not set 18 Buffer underflow set 19 Buffer underflow not set 20 Buffer not full/buffer overflow 21 Data miscompare 22 Buffer not empty 23 Buffer out parity error 24 Buffer in parity error 25 Buffer in parity error not set 26 Buffer out parity error 27 Data miscompare 28 Buffer out parity error not set CRC Generator Check 29 CRC generator's initial value incorrect 30 Buffer in parity error 31 Generated CRC in is incorrect 32 Buffer out parity error 33 Generated CRC out is incorrect Timer-Interrupt Controller Check 34 Timer failure 35 No buffer full interrupt request 36 Interrupt controller 2 status in error 37 No buffer empty interrupt request 38 No interrupt service for interrupt controller 2 39 Interrupt service for masked interrupt controller 2 40 No timer 2 interrupt request 41 Interrupt controller 1 status in error 42 No timer 3 interrupt 43 No TX/RX ready interrupt 44 No interrupt service for interrupt controller 1 45 Interrupt service for masked interrupt controller 1 48 Formatter HER/CER 49 Buffer in parity error 50 Data transfer count not 4K 51 Read data count not 4K 52 CRC miscompare 53 Data miscompare ASCII Port Check 55 ASCII port failure 1-106C FAULT CODE 67 (Cont'd) (TU81E) FAULT CODE 67 (TU81E) FAULT CODE 67 (TU81E) SUB-FAULT CODES (Cont'd) Data Transfer From Host To Buffer Data miscompare 56 Transfer done status is not set 57 Buffer transfer count not zero 58 Data miscompare data pattern 55AA 59 Transfer done status is not set 60 62 63 64 65 78 79 80 81 82 Data miscompare data pattern 55AA Tl not high Tl not low LESI status not clear Data miscompare No compare error No second compare error Byte count not correct Compare error not ignored Data Transfer From Buffer To Host Transfer done status not set 66 Buffer transfer count not zero 67 68 Data miscompare data pattern AA55 69 LESI parity error 70 Transfer done status not set 71 Buffer transfer count not zero 72 Data miscompare data pattern 55AA No LESI parity error 73 .......... +. - _ ..... 74 Transfer done status !lU'Buffer transfer count not zero 75 76 Data miscompare on one byte transfer No LESI parity error 77 >::)1::''- 1-107 I FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 67 (TA8l) FAULT CODE 67 - STI INTERFACE MODULE HEALTH CHECK (TABl) Assumption: TA8l displays Fault Code 67 as Interface Module Health Check fault. a result of NOTE Following any corrective action, the unit should be powered off and powered on again. 010 y 020 1 1 030 2 Replace operator panel. I I I N Press CE Switch. I Sub-fault code 847 Replace STI Module. FAULT CODE 67 (TA8l) SUB-FAULT CODES 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 NO STATE parity error signal (INT) STATE parity error signal (INT) STATE parity error signal (INT) STATE parity error signal (INT) INIT signal or CRR signal (INT) NOT INIT signal (INT) INIT signal or eRR signal (INT) INIT signal or CRR signal (INT) INIT signal or CRR signal (INT) NOT CRR signal (EXT A) NO STATE parity error signal (EXT A) STATE parity error signal (EXT A) STATE parity error signal (EXT A) STATE parity error signal (EXT A) INIT signal or CRR signal (EXT A) NOT INIT signal (EXT A) INIT signal or CRR signal (EXT A) INIT signal or CRR signal (EXT A) INIT signal or CRR si~nal (EXT A) NOT eRR signal (EXT A, NO STATE parity error signal (EXT B) STATE parity error signal (EXT B) STATE parity error signal (EXT B) STATE parity error signal (EXT B) 1-108 I FAULT CODE 67 (TA8l) FAULT CODE 67 (Cont'd) (TA8l) FAULT CODE 67 (TA8l) SUB-FAULT CODES (Cont'd) 25 26 27 28 29 30 31 32 33 34 35 36 40 41 42 43 44 45 46 47 48 49 51 52 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 INIT signal or CRR signal (EXT B) NOT INIT signal (EXT B) INIT signal or CRR signal (EXT B) INIT signal or CRR signal (EXT B) INIT signal or CRR signal (EXT B) NOT CRR signal (EXT B) READ LOW error detection checker not equal 0 READ HIGH error detection checker not equal 0 READ LOW error detection checker not equal OBAH READ HIGH error detection checker not equal OFFH READ LOW error detection checker not equal OBAH READ HIGH error detection checker not equal OFFH NOT FIFO parity error signal FIFO parity error signal FIFO parity error signal or SEQUENCER error signal FIFO input does not equal FIFO outputted FIFO parity error signal or SEQUENCER error signal FIFO does not equal OFEH FIFO parity error signal or SEQUENCER error signal FIFO does not equal OFDH FIFO parity error signal or SEQUENCER error signal FIFO does not equal OFCH HIGH read count not equal to outputted READ-AFTER-WRITE COUNT ZERO signal COMMAND BUSY signal DATA ACKNOWLEDGE signal DATA BUSY signal STI error LOW byte of read count not zero HIGH byte of read count not zero NO READ-AFTER-WRITE ZERO signal HARD error or CER error READ LOW error detection checker not equal 0 READ HIGH error detection checker not equal 0 FIFO input does not equal FIFO outputted NOT EMPTY or (FULL or HALFFULL) NOT HALFFULL or (EMPTY or FULL) (NOT (FULL or HALFFULL) STI error NOT HALFFULL NOT EMPTY NO SEQUENCE error NO SEQUENCE error SEQUENCE error l08A FAULT CODE 67 (Cont'd) (TA8l) FAULT CODE 67 (TA8l) FAULT CODE 67 (TA8l) SUB-FAULT CODES (Cont'd) 80 81 83 84 86 87 88 89 90 91 92 93 94 95 96 97 98 99 NO TIMEOUT TIMER flag not zero TRANSMISSION error UART data miscompare LOW read count not zero HIGH read count not zero COUNT 16 signal NO READ-AFTER-WRITE COUNT ZERO signal RAW COUNT ZERO signal or NO COUNT 16, signal COUNT 16 signal NO READ-AFTER-WRITE COUNT ZERO signal LOW read count not OFFH HIGH read count not OFFH READ-AFTER-WRITE COUNT ZERO signal LOW read count not equal to outputted HIGH read count not equal to zero READ-AFTER-WRITE COuNT ZERO signal LOW read count not equal to zero I 108B FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 68 FAULT CODE 68 - TMSCP/STI INTERFACE MODULE PROM CHECKSUM Assumption: TU8l/TA8l displays Fault Code 68 as Interface Module Checksum fault. a result of NOTE Following any corrective action, the unit should be powered off and powered on again. 010 1 Replace TMSCP/TU8l or STI/TA8l Module. FAULT CODE 68 SUB-FAULT CODES 01 03 MSCPOl checksum fault (IC G07) MSCP03 checksum fault (IC G03) lOBC FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 69 (TUBl) FAULT CODE 69 - REMOTE DIAGNOSTICS (TU8l) Assumption: TU8l displays Fault Code 69 as a result of TMSCP Module Health Check fault. NOTE Following any corrective action, the unit should be powered off and powered on again. 010 y N 020 I 1 II Refer to sub-fault codes below. Press CE switch. Sub-Fault Code 00-04? ,...I Replace Ser7o-Control Module. 030 ! I 040 2 050 3 I Replace Formatter Write Module. Replace TMSCP Module. FAULT CODE 69 (TUBl) SUB-FAULT CODES 00 01 02 03 04 Test cannot be run remotely RESET button was pushed while executing a remote diagnostic Drive was busy and test could not be executed Present drive mode must be terminated prior to test execution Formatter was busy and test could not be executed I08D I FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 69 (TABl) FAULT CODE 69 - STI INTERFACE MODULE HEALTH CHECK (TABl) Assumption: TABI displays Fault Code 69 as a Module Health Check fault. result of STI NOTE Following any corrective action, the unit should be powered off and powered on again. 010 Y N Press CE switch. 020 1 030 2 I I I 1 Sub-Fault Code 63 or 64? Replace STI Module. Replace operator panel. (NOTE: Sub-Fault Code 62 can occur if ASCII port cable is connected and receiving device is powered off. Receiving device power should be turned on or ASCII port cable should be disconnected before attempting to turn power on.) FAULT CODE 69 (TABl) SUB-FAULT CODES 01 02 03 04 05 06 LOW read count not zero (INT) HIGH read count not zero (INT) STI error (INT) FIFO EMPTY signal (INT) FIFO not equal to 055H (INT) FIFO not equal to OAAH (INT) 11 12 13 14 15 16 LOW read count not zero (EXT A) HIGH read count not zero (EXT A) STI error (EXT A) FIFO EMPTY error (EXT A) FIFO not equal to 055H (EXT A) FIFO not equal to OAAH (EXT A) 21 22 23 24 25 26 LOW read count not zero (EXT B) HIGH read count not zero (EXT B) STI error (EXT B) FIFO EMPTY signal (EXT B) FIFO not equal to 055H (EXT B) FIFO not eq~al to OAAH (EXT B) 1-109 FAULT CODE 69 (Cont'd) (TABl) FAULT CODE 69 (TABl) FAULT CODE 69 (TABl) SUB-FAULT CODES (Cont'd) 61 62 63 64 TXMT RDY 100 msec timeout on internal ASCII port test REC RDY 100 msec timeout on internal ASCII port test TXMT RDY 100 msec timeout on external ASCII port test REC RDY 100 msec timeout on external ASCII port test I 1-110 FAULT CODE TROUBLESHOOTING PROCEDURE FAULT CODE 70/71 FAULT CODE 70/71 - INVALID OPERATOR SEQUENCE Assumption: TUB1/TABl displays Fault Code 70/71 as a result of tests being run in improper sequence or other invalid operator action. Refer to procedures for test being run. l-llOA/B Section 2 - DIAGNOSTIC TEST INFORMATION 2al SCOPE The diagnostic test information contained in this section consists of Test Options (Subsection 2.2) and Test Descriptions (Subsection 2.3). Eacn Test Description in Subsection 2.3 details Test Requirements, Test Description, Test Sequence, and Possible Termination Codes. A brief explanation of each of the neadings is given below. o Test Requirement Preconditions prior to execution of the test. wnicn must be adhered o Test Description - A brief explanation of what the test is all about. o Test Sequence A step-by-step breakdown of what happens during execution of the test. The test sequence is performed automatically when EXECUTE is pressed. o Possible Termination Codes associated with the test. A list of termination to codes 2.2 DIAGNOSTIC TEST OPTIONS The diagnostic tests and tneir options are listed below. A key to tne option code is given at the end of this subsection. Refer to paragraph 1.3.2.1 for instructions on selecting options. I 2-1 DIAGNOSTIC TEST OPTIONS (Cont'd) 2.2 TEST ~O. DESCRIPTION 01 04 05-09 Functional fault Detection Diagnostic Unit Identification Diagnostic Reserved TEST NO. DESCRIPTION OPTION CODt: 02 03 Tension Fault Isolation Diagnostic Velocity Fault Isolation Diagnostic 10 11 12 13 14 15 16 17 18 19 Forward at Option Speed to EDT Reverse at Option Speed to BOT Forward Ramps at Option Speed to EDT Reverse Ramps at Option Speed to BOT GCR Start/Stop Repositioning 75 ips Forward Ramps to EDT 75 ips Reverse Ramps to BOT 75 ips Repositioning 75 ips Forward to EDT 75 ips Reverse to BOT 20 Unit Internal Fault Detection Diagnostic 21 Write 2K Byte Records in PE Mode at 25 ips to EOT (at EDT, Rewind to BOT) Read at 25 ips to EDT (at EDT, Rewind to BOT) write 2K Byte Records in PE Mode at 75 ips to EDT (At EDT, Rewind to BOT) Read at 75 ips to £OT (at EDT, Rewind to BOT) Write 2K Byte Records in GCR Mode at 25 ips to EDT (at EDT, Rewind to BOT) write 2K Byte Records in GCR Mode at 75 ips to EDT (at EDT, Rewind to BOT) 22 23 24 25 26 Reserved(T1I.81) 28 Perform Command Stack entered by Diagnostic 97 at 25 ips. Perform Command Stack entered by Diagnostic 97 at 75 ips. 30 L L L L L L B B B B B B B F~()m ASX~ Porz.'t 27 29 S S S S Check Read Amplitudes at 25 and 75 ips to be within tolerance of 0.8 volt. 2-2 B B S DIAGNOSTIC TEST OPTIONS (Cont'd) 2.2 oprION TEST ~O. 31 DESCRIPTION Determine EGC Gains at 25 and 75 ips and store gains in Backup Memory. Then check Read Amplitudes at 25 and 75 ips to be within tolerance of 0.1 volt. 32 Check Read Amplitudes at 25 and 75 ips with pre-recorded all l's tape with tolerance of 0.3 volt. 33 Determine EGC Gains at 25 ips and store gains in Backup Memory. Determine EGC Gains at 75 ips and store gains in Backup Memory. 34 35-36 37 38 39 I. (\ '"TV x Apply approximately 8-ounce tension by pulsing supply reel with take-up reel in Stoplock. x Option Pattern in PE Mode to EOT at 25 ips (at EaT, Rewind to BOT, repeat test). write Option Pattern in PE Mode to EOT at 75 ips (at EDT, Rewind to BOT, repeat test). ~rite 51 Reserved 46 47 48 x Determine Velocity Servo Correction Multiplier and store multiplier in Backup Memory. 49 50 43 44 45 x Reserved Stoplock Take-up Reel Enable Tension Servo Turn-on Pump Fast Search Forward for EDT Refresh Scope Loop Velocity DAC Scope Loop Servo-Control Microprocessor Outputs Scope Loop Set Up Pump Power-Down Timer Set Up TU81/TA8l Mode Enable Auto Load 41 42 x 2-3 P P x X X X X X X X X X I DIAGNOSTIC TEST OPTIONS (Cont'd) 2.2 TEST NO. 52 53 54 55 56 57 58 59 60 OPfION CODe DESCRIPTION Write Option Pattern in GCR Mode to EOT at 25 ips (at EOT, Rewind to BOT, repeat test). . Write Option Pattern in GCR Mode to EOT at 75 ips (at Ear, Rewind to BOT, repeat test). Examine/Change Write Current Levels Drive Internal Diagnostic Formatter Internal Diagnostic Interface Internal Diagnostic Loop Write-to-Read thru Drive Interface Interface Loop Write-to-Read thru Read/write Loop Write-to-Read thru Formatter 62 Take-up Motor and Power Amp Marginal Fault Detection Take-up Fine-Line Tacn Fault Detection 63 Reserved 64 Automatic Write Current Adjustment 65-69 Reserved 70 Enable/disable Error Printout on ASCII Terminal 61 71-81 82 83-90 91 92-96 97 P P X B B B B B B x x x y Reserved Enable Low Tension Mode See Test Description Reserved Functional Fault Detection (Same as Operator Test 01 except: a) will start in Loaded or Unloaded condition, b) Bypass EGC test.) B Reserved Read/Write Command Stack Generation Diagnostic 2-4 x DIAGNOSTIC TEST OPTIONS (Cont'd) 2.2 OPTION KEY x = Do not use any options. L = Test will loop. Do not use any options. B = Field Service Representative may use the following options: 00 = Halt if read or write errors exceed limits specified, halt on completion of test (Default option). 01 = Loop on test, halt if read or write errors exceed limit specified on any given pass. 02 Loop on test, bypass read or write error halts. Y Field Service Representative may use tne following options: 00 = To disable error printout on ASCll terminal. (Default) 01 To enable error printout on ASCii terminal. NOTE Option of halting or bypassing errors only exists for read/write type errors; all other errors will cause test to halt, with the appropriate fault code displayed, regardless of the option selected. P = Field Service Representative may use the following option following option n!:lrrornc o .t' ..... '- -'-'''' ~ .. .., • 00 = All ones pattern 01 = One-half frequency pattern 02 = One-third frequency pattern (GCR only) S = Field Service Representative may speeds: use the 00 25 ips speed 01 = 12.5 ips speed DIAGNOSTIC TEST DESCRIPTIONS 2.3 Each of the diagnostic tests is listed in numerical order; witn details of the Test Requirement, Test Description, Test Sequence, and Possible Termination Codes 2-5 I TEST 01: FUNCTIONAL FAULT DETECTION TEST TEST 01 TEST REQUIREMENT: A write enabled scratch tape should be threaded, but NOT loaded (untensioned). Disable port switches (TABI only). DESCRIPTION: Test 01 performs various functions normally performed during operations. Unit halts with appropriate fault code if a functional fault occurs. TEST SEQUENCE: a. Light - ONLINE and RESET /FAULT indicators. Increment display from 00 to 99. Extinguish ONLINE and RESET/FAULT indicators. Display 01. b. Load tape. c. Check read amplitudes at low and high speeds. d. Write 100 blocks NOTE 1). e. Space Reverse, Erase, and Write File Mark (check for file mark detected). Space Reverse and check for file mark detected. Read Forward and again check for file mark detected. f. Read Reverse 100 blocks at 25 ips start/stop. g. Read Forward 100 blocks at 25 ips start/stop. h. Repeat steps d thru g at 25 ips streaming. i. Repeat steps d thru g at 75 ips streaming. j . Write 10 blocks at 75 ips "thrashing" (see NOTE 2) . k. Read Reverse 10 blocks at 75 ips "thrashing". 1. Read Forward 10 blocks at 75 ips "thrashing". m. Rewind. n. Read Forward 300 blocks at 75 ips streaming. file mark detected at blocks 100, 200, and 300. o. Rewind. p. Repeat steps d thru n in GCR mode and Space Reverse where Read Reverse is specified. in PE mode 2-6 at 25 ips Rewind. start/ stop (see Check for TEST 01: (Cont'd) TEST 01 (Cont'd) q. Write to EOT in GCR mode at 75 ips streaming (see NOTE 1). r. Space reverse 1000 records at (reposition after every 250 records). s. write to EOT in GCR mode at 25 ips streaming. t. Kewind. 75 ips streaming NOTE 1. Data blocks written are 2K bytes with an incrementing pattern starting at zero for each block. NOTE 2. Data blocks written are 256 bytes with an incrementing pattern starting at zero for each block. POSSIBLE TERMINATION CODES: 00 - Test is Successful 01 - Read Envelope Fault 02 - Read Amplitude Range Fault 03 - ID Check 04 - Low Speed write Error 05 - Low Speed Read Error 06 - High Speed Write Error 07 - High Speed Read Error 08 - Noise Detected While Erasing 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure I 2-7 TEST 02: TE~SION TEST REQUIREMENT: TEST 02 FAULT ISOLATION Tape should be (untensioned). threaded, but NOT loaded Valid fault code displayed in operator panel. See NOTE below. NOTE Test 02 will run only if, during execution of Test 01, one of tne following codes appears in the operator panel display: 22, 24, 26, 30, 31, 36. Test will not run unless conditions above are met. TEST DESCRIPTION: Test 02 is an extension of Test 01. isolates servo faults by checking assemblies of the TUB1/TAB1. Test 02 various TEST SEQUENCE: a. Verify top cover is closed and tape is not loaded. b. Verify Refresh DAC of Servo-Control Module operational. If not, display Termination Code 80. c. Verify supply reel power amp is operational. display Termination Code Bl. If not, d. Verify take-up reel power amp is operational. display Termination Code 82. If not, e. Verify Demand Velocity DAC of Servo-Control Module operational. If not, display Termination Code B3. f. Move tak e-up reel sligh t ly in forward direct ion. Check for correct count of quarter-tacn pulses. If incorrect, display Termination Code B4. g• Re pea t s t e p f i n the rever sed ire c t ion. Termination Code 84 if tach count is incorrect. h. Verify velocity feedback loop of Servo-Control Module is operational by putting take-up motor in stoplock mode, monitoring forward and reverse quarter-tachs. and Display Termination Code 85 if any faul~ is detected. 2-8 is is Display r£ST 02: T£5T 02 (Cont'd) (Cont'd) i. Verify that tension comparators on Servo-Control Module are operational. Vary tension offsets and monitor status of tension level status lines. If any fault is detected, display Termination Code 87. J. with pneumatic pump off, zero tension offsets. occurs, display Termination Code 97. k. Turn on lonor ."-(.,1.0'- pneumatic pump. ?- . v () , """1"00 V \.1&..&'-'-"0 "f ", .. If ro"o;,," ,-,,-,,&..&..;;J..L..'-'L.&, take-up sensor .y.-l;onlnu ..... ...... u.J ~t' 90. If file sensor detects at least tension, display Termination Code 89. If fault detects 'l'o,..;n;1'""Inr;,," .u..&..J...L.&U,'-..L.'VL.& .a..\"';O ... 2.0 ounces at r"~a V\JU\Wo of 1. Enable take-up servo. Move take-up reel from 0 ips to 6 ips in forward direction. m. If both sensors do not detect at least 2.0 ounces of tension within 15 seconds, display Termination Code 91. n. If, during this 15 seconds, the supply sensor does not detect 2.0 ounces of tension within 100 milliseconds after take-up sensor, display Termination Code 74. If take-up sensor does not detect 2.0 ounces within 100 milliseconds after supply sensor, display Termination Code 72. p. Move supply reel slowly in reverse direction while take-up reel is moving forward at 6 ips. If neither sensor detects at least 16 ounces of tension within 500 milliseconds; display Termination Code 92e q. If, during this 500 milliseconds, the supply sensor does not detect 16 ounces of tension witnin 100 milliseconds after take-up sensor, display Termination Code 75. If take-up sensor does not detect 16 ounces of tension within 100 milliseconds after supply sensor, display Termination Code 73. r. Stop moving supply reel in reverse direction. If tension detected on both sensors is not witnin limits in 100 milliseconds, display Termination Code 98. s. Stop reel motion. is successfule Display Fault Code 00 to indicate test 2-9 I reST 02: TEST 02 (Cont'd) (Cont' d) POSSIBLE TERMINATION CODES: 00 - rest is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence. See Test 02 Requirements. 71 - Invalid Operator Sequence (rape Loaded Fault) 72 - TU Sensor Fault 1 73 TU Sensor Fault 2 74 Supply Sensor Fault 1 75 Supply Sensor Fault 2 80 Refresh DAC Fault 81 File Power Amp Fault 82 TU Power Amp Fault 83 Demand Velocity DAC Fault 84 TU Motor/Tach Fault 85 - Velocity Feedback Loop Fault 86 TU Comparator Fault 87 - Supply Comparator Fault 89 Supply Sensor - 0 Fault 90 TU Sensor - 0 Fault 91 - Pump Failure Fault 92 Filter/Regulator, Pump, Servo-Control Module Fault 97 Servo-Control Module, Sensor Intermittent Fault 98 - Servo-Control Module, Power Amp Fault 2-10 TEST 03: VELOCITY FAULT ISOLATION TEST REQUIREMENT: TEST 03 Tape should not be threaded. fest 03 should not be used unless Test 01 directs its use. This test may fail if run Stand-alone. TEST DESCRIPTION: Test 03 isolates velocity servo faults by checking the take-up motor/tach assembly and the velocity servo loop. TEST SEQUENCE: a. Check if the top cover is closed and tape is absent. b. Ramp up to 4 ips. c. Check if distance between two consecutive quarter is witnin tolerable limits. d. If, after five tries, at least once, the distance between two consecutive quarter tachs is within limits, go to step f. e. Display Termination Code 96. f. Check that the distance between all consecutive quarter tachs is within tolerable limits. g. If distance between any two consecutive quarter tachs is not witnin limits, report fault, otherwise, go to step i. h. Repeat steps e and f. If the error times, display Termination Code 98. i. Apply diagnostic lines to move take-up motor in forward direction from J to 75 ips, and measure time it requires to ramp-up. Stop take-up motor. j. Calculate motor constant from this data. k. If motor constant is within range, go to step e. If motor constant is out of range tne first time, repeat steps i and j. Otherwise, display Termination Code 84. 1. Apply full current to move take-up notor in forward direction from 0 to 75 ips, and measure time it requires to ramp-up. Stop take-up motor. m. If power amp is not capable of delivering full current in forward direction, flag a fault, otherwise, go to step o. 2-11 is tacos detected I TeST 03: TEST 03 (Cont'd) (Cont'd) steps and m, n. If fault is the first time, repeat otherwise, display Termination Code 82. o. Apply full current to move take-up motor in reverse direction from 0 to 75 ips, and measure time it requires to ramp-up. Stop take-up motor. p. If power amp is not capable of delivering full current in reverse direction, flag a fault, otherwise, go to step r. q. If fault is the first time, repeat otherwise, display Termination Code 82. r. Display Termination completion of test. Code 00 to steps indicate 1 0 and successful POSSIBLE TERMINATIOcl CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 82 - Take-Up Power Amp Fault 84 - Take-Up Motor/Tacn Fault 94 - Tape Present Fault 95 Formatter Interrupt received while test in progress. 96 - Servo Loop Fault 98 - Take-up Motor/Tacn Fault 2-12 p, r.r.:ST 04: UNIT IDENTIFICATION TEST TEST 04 of Test 49 to enable TEST REQUIREMENT: execution Prior rU81/TA81 Hode. TEST DESCRIPTION: Test 04 allows changing of the 3-digit uni t identification number. TEST SEQUENCE: a. Enter Test 04 and press EXEC switch. b. Enter the 3-digit (decimal) unit identification number. (For instructions on entering the unit identification number, refer to paragraph 1.3.1, Operator Tests.) c. Pr e s s FA llL r / RE Sr: T s wit c h 0 nth e 0 per at 0 r pan e 1 and unit identification number just entered is displayed. the POSSIBLE rERMINATION CODES: 00 - Test is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 75, 76 - Bad Backup Memory 77 - Drive Not in TU81/TA81 Hode 78 - 2201 EEPROM Checksum Fault 99 - Illegal Remote Test I 2-13 TEST 10: FORWARD AT OPTION SPEED TO ~OT TEST 10 TEST REQUIREMENf: Tape should be loaded. f£ST DESCRI PTION: Tes t 10 exerc ises to e tr ans por t i n a continuous mode at the selected option speed in the forward direction. When EDT is detected, tape is stopped and the selected option speed continuous mode is executed in reverse direction. When BOT is detected, the routine starts again. Manual intervention is required to terminate the test. TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run forward continuously until EaT is detected. c. Stop and run reverse continuously at the selected option speed until BOT is detected. d. Stop motion and go to step b. at the selected option POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-14 speed TEST 11: REVERSE AT OPTION SPEED ro BOT TEST 11 TEST REQUIREMENT: Tape should be loaded. feST DESCRIPTION~ Test 11 exercises the transport in a continuous mode at the selected option speed in the rever sed ire c t ion. Wh en BOT is detected, tape is stopped and the selected option speed continuous mode is executed in forward direction. Wnen EaT is detected, the routine starts again. Manual intervention is required to terminate the test. TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run reverse continuously until BOT is detected. c. Stop and run forward continuously at tne selected option speed until EDT is detected. d. Stop motion and go to step b. at the selected option speed POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) I 2-15 TEST 12: FORWARD RAMPS AT OPTION SPEED fa Ear TEST 12 TEST REQUIREMENT: Tape should be loaded. TEST OESCRI PT ION: Tes t 12 exerc ises tne tr anspor t in a start/stop mode at the selected option speed in the for war d d ire c t ion. Wh en EOT i s detected, th e same tn e selec ted opt ion speed start/stop mode is executed in the reverse direction. When BOT is detected, the routine starts again. Manual intervention is required to terminate the test. TEST SEQUENCE: a. Check if tne top cover is closed and tape is loaded. b. Run forward at the selected option speed for 30 ms. c. Stop and pause for 100 illS. d. Repeat steps band c until EOT is detected. e. Run reverse at toe selected option speed for 30 ms. f. Stop and pause for 100 ms. g. Repeat steps e and f until BOT is detected. n. Go to step b. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-16 TEST 13: KEVE~St: RAMPS AT OPTION SPEED TO BOT TEST 13 TEST REQUIREME~T: Tape should be loaded. rEST D£SCRIPTION: Test 13 exercises the transport in a start/stop mode at the selected speed option in the reverse direction. When BOT is detected, the same the selected speed option start/stop mode is executed in the forward direction= When EDT is detected, the routine starts again. Manual intervention is required to terminate the test~ TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run reverse at the selected speed option for 30 ms. c. Stop and pause for 100 ms. d. Repeat steps b and c until BOT is detected. e. Run forward at the selected speed option for 30 ms. f• Stop and pause for 100 ms. g. Repeat steps e and f until £OT is detected. h. Go to step b. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence CTape Not Loaded Fault) I 2-17 TeST 14: GCR Sf ART/STOP REPOSITIONING TEST 14 TEST REQUIREMENT: Tape should be loaded. TeST DESCRIPTION: fest 14 is a routine emulating GCR start/stop repositioning. It repositions the tape in the forward direction. When EaT is detected, it repositions the tape in the reverse direction. When BOT is detected, tne routine starts again. Manual intervention is required to terminate the test. fEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. D. Run forward at 25 ips for 100 ms. c. Run reverse at 12.5 ips for 1 ms. d. Repeat steps b and c until EOT is detected. e. Run forward at 12.5 ips for 1 ms. f. Run reverse at 25 ips for 100 ms. g. Repeat steps e and f until BOT is detected. h. Go to step b. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-18 TEST 15: FORWARD 75 IPS RAMPS TEST 15 TEST R£QUIREME~T: Tape should be loaded. rt:ST DESCRIPTION: rest 15 exercises toe transport in a start/stop mode at 75 ips in the forward direction. When EOT is detected, the same 75 ips start/stop mode is executed in the reverse direction. when BOT is detected, the routine starts again~ Manual intervention is required to terminate the test. TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run forward at 75 ips for 30 ms. c. Stop and Pause for 400 ms. d. Repeat steps b and c until EOT is detected. e. Run reverse at 75 ips for f. Stop and pause for 400 ms. g. Repeat steps e and f until BOT is detected. h. Go to step b. '"I t"\ .)u ms. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) I 2-19 fEST 16: R~VERS~ 75 IPS RAMPS TEST 16 TEST REQUIREMENT: Tape should be loaded. feST D~SCRIPTION: Test 16 exercises the transport in a start/stop mode at 75 ips in the reverse direction. When BOT is detected, the same 75 ips start/stop mode is executed in the forward direction. When EOT is detected, the routine starts again. Manual intervention is required to terminate the test. TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run reverse at 75 ips for 30 ms. c. Stop and Pause for 400 ms. d. Repeat steps b and c until BOT is detected. e. Run reverse at 75 ips for 30 ms. f. Stop and pause for 400 ms. g. Repeat steps e and f until EOT is detected. h. Go to step D. POSSIBLE TERMINAfION CODES: 10 to 69 - Refer to fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-20 TEST 17: 75 IPS REPOSITIONING TEST REQUIREMENT: T~ST DESCRIPTION: TEST 17 Tape should be loaded. Test 17 is a repositioning routine at 75 ips. It repositions the tape in the forward direction. When EOT is detected, it repositions the' tape in the reverse direction. When BOT is detected, the routine starts agaioe Manual intervention is required to terminate the test. TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run forward at 75 ips for 400 ms. c. Run reverse at 75 ips for 100 ms. d. Repeat steps b and c until EOT is detected. e. Run forward at 75 ips fOr ,,,f\ l.VV ms. f. Run reverse at 75 ips for 400 ms. g. Repeat steps e and f until BOT is detected. n. Go to step b. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence CTape Not Loaded Fault) I 2-21 TEST 18: FORWAKD 75 IPS CONTINUOUS TEST 18 TEST REQUIREMENT: Tape should be loaded. TEST DESCRIPTION: Tes t 18 exerc ises the tr anspor t in a continuous mode at 75 ips in the forward direction. When EOT is detected, tape is stopped and 75 ips continuous mode is executed in the rever se direct ion. wh en BOT is detected, the routine starts again. Ma n ua l i n t e r v e n t ion i s r e qui red tot e r min ate tne test. TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run forward continuously 75 ips until EOT is detected. c. Stop and run reverse continuously at 75 ips until BOT is detected. d. Stop motion and go to step b. POSSIBLE TE&~INATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-22 TEST 19: TEST 19 REVERSE 75 IPS CONTINUOUS TEST REQUIREME&T: Tape should be loaded. Tt:ST DESCRIPTION: Test 19 exercises tne transport in a continuous mode at 75 ips in the reverse direction. Wnen BOT is detected, tape is stopped and 75 ips continuous mode is executed in the forward direction. When £OT is detected, the routine starts again. Manual intervent ion is requ ired to termina te +-ho \..110; +-""'~+ \..0;;;:I\... TEST SEQUENCE: a. Check if the top cover is closed and tape is loaded. b. Run reverse continuously 75 ips until BOT is detected. c. Stop and run forward continuously at 75 ips until EOT is detected. d. Stop motion and go to step b. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) I 2-23 fEsr 20: UNIT INTERNAL DIAGNOSTICS TEST 20 TEST REQUIREMENT: None. fEST DESCRIPTION: Test 20 checks out the internal hardware of the drive, the formatter and interface. It also checks out the bus between tne for~atter and interface. TEST SEQUENCE: a. Check out the device internal hardware. b. Check out the formatter internal hardware. c. Check out toe bus between tne formatter and interface. d. Coeck out the interface internal hardware. POSSIBLE TERMINAfION CODeS: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 2-24 TEST 21: 25 IPS STREAMING wRITE TO EOT IN FE MODE TEST 21 TEST REQUIREMENT: A write enabled scratch tape snould be loaded. TEST DESCRIPTION: Test 21 rewinds the tape and writes 2K byte records, incrementing data pattern to EDT at 25 ips streaming mode. On detection of EOT, it rewinds and positions at BOT. If a write error occurs, the unit performs Backspace, Erase, and attempts to write again. If more than five consecutive erases are required, the test terminates with a write fault. If 32 erases are required in one complete pass, the test terminates with a write fault. All functional checks are active throughout the test. TEST SEQUENCE: a. Rewind to BOT (this option is selected). function is not performed b. write 2K byte records at 25 ips streaming to EOT. c. Rewind to BOT. if 02 POSSIBLE TE~~INATION CODES: 00 - Test is successful 03 - ID Check 04 - Low Speed Write Error 09 - Hardware Failure 08 - Noise Detected While Erasing 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) I 2-25 T£ST 22: 25 IPS READ TO EDT TEST 22 TEST REQUIREMENT: A pre-written tape should be loaded. To make a 75 ips streaming tape in the PE mode, execute Test 23. To make a 25 ips streaming tape in the GCR mode, execute Test 25. TEST DESCRIPTION: Test 22 rewinds the tape and reads any pre-written tape to EDT at 25 ips. Any read error halts the test with a fault code. All functional checks are active. On detection of EDT, it rewinds and positions at BOT. TEST SEQUENCE: a. Rewind to BOT (this option is selected). function is not b. Read records at 25 ips streaming to EDT. c. Rewind to BOT. performed POSSIBLE TERMINATION CODES: 00 - Test is Successful 03 - ID Check 05 - Low Speed Read Error 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-26 if 02 TEST 23: 75 IPS STRE&~ING WRITE TO EOT IN PE MODE TEST 23 TEST REQUIREMENT: A write enabled scratch tape should be loaded. TEST DESCRIPTION: Test 23 rewinds the tape and writes 2K byte records, incrementing data patterns to EDT at 75 ips in streaming mode. On detection of EOT, it rewinds and positions at BOT. If a write error occurs, the unit performs Backspace, Er ase, and a ttempts to wr i te again.. If more than five consecutive erases are required, the test terminates with a write fault. If 32 erases are required in one complete pass, the test terminates with a write fault. All functional checks are active throughout the test. TEST SEQUENCE: a. Rewind to BOT (tnis option is selected). b. Write 2K byte records at 75 ips streaming to EaT. c. Rewind to BOT. function is not performed if 02 POSSIBLE TERMINATION CODES: 00 - Test is successful 03 - ID Cn eck 06 - High Speed Write Error 08 - Noise Detected While Erasing 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) I 2-27 fEST 24: 75 IPS ~£AD TO EOT TEST 24 TEST REQUIREME~f: A pre-written tape should be loaded. To make a 75 ips streaming tape in the PE mode, execute Test 23. To make a 25 ips streaming tape in the GCR mode, execute Test 25. TEST DESCRIPTION: Test 24 rewinds the tape and reads any pre-written tape to EDT at 75 ips. Any read error halts the test with a fault code. All functional checks are active. On detection of EDT, it rewinds and positions at BOT. TEST SEQUENCE: a. Rewind to BOT (this option is selected). function is not b. Read records at 75 ips streaming to EDT. c. Rewind to BOT. performed POSSIBLE TERMINATION CODES: 00 - Test is Successful 03 - ID CheCK 07 - High Speed Read Error 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-28 if 02 TEST 25: 25 IPS STREAMI~G wRITE TO EaT IN GCR MODE TEST 25 TEST REQUIREMENT: A write enabled scratch tape should be loaded. TEST DESCRIPTION: Test 25 rewinds the tape and writes 2K byte records, incrementing data pattern to EDT at 25 ips streaming mode. On detection of EDT, it rewinds and positions at BOT. If a write error occurs, the unit performs Backspace, Er ase, and a ttempts to wr i te aga in. If more than five consecutive erases are required, the test terminates with a write fault. If 32 erases are required in one complete pass, tne test terminates with a write fault. All functional checks are active throughout the test. TEST SEQUENCE: a. Rewind to BOT (tnis option is selected). function is not performed b. Write 2K byte records at 25 ips streaming to EDT. c. Rewind to BOT. if 02 POSSIBLE TERMINATION CODES: 00 - Test is successful 03 - ID Check 04 Low Speed Write Error 08 - Noise Detected While Erasing 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) I 2-29 TEST 26: 75 IPS STRENiING wRlfE TO ~OT IN GCR MODE TEST 26 TEST R.EQUIREMENT: A write enabled scratcn tape should be loaded. TEST DES CRI PT ION: Test 26 r e win d s the tap e and wr i t e s 2K by t e records, incrementing data patterns to EDT at 75 ips in streaming mode. On detec t ion 0 f EDT, it rewinds and positions at BOT. If a write error occurs, the unit performs Backspace, Erase, and attempts to write again. If more than five consecutive erases are required, tne test terminates with a write fault. If 32 erases are required in one complete pass, the test terminates with a write fault. All functional checks are active throughout the test. TEST SEQUENCE: a. Rewind to BOT (this option is selected). function is not performed b. write 2K byte records at 75 ips streaming to EDT. c. Rewind to BOT. POSSIBLE TERMINATION CODES: 00 - Test is successful 03 - ID Check 06 - riigh Speed write Error 08 - Noise Detected While Erasing 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-30 if 02 TEsr 28: PERFO&~ COMMAND STACK AT 25 IPS START/STOP TEST REQUIRE1~NT: TEST DESCRIPTION: TEST 28 a. If a write-type operation is desired, a write enabled scratch tape should be loaded. b. If a read-type operation is desired, pre-recorded tape should be loaded. Test ,.., i- n '" 28 1, ~I..a,-", performs .... _ i- ..... _ "" A CUI..CL.CU h·... LJ] the 'T' ......... i- .LC~I.. three-level Q 7 71. T~ ..L..L " ,.... i- .; ".... Vpl...LVll a command nV..L. , , ,. . .L~ entered, the stack will be repeated until EOT or BOT is detected. If write operation is being performed upon an error, a Backspace, Erase, and Rewrite is performed. If read operation is being performed, any uncorrectable read error will cause the test to fail witn a read fault. All functional checks are active throughout the test. Option 2 bypasses read and write errors as in all read/write tests. POSSIBLE TERMINATION CODES: 00 - Test is Successful 03 - ID Check 04 - Low Speed Write Error 05 - Low Speed Read Error 08 - Noise Detected While Erasing 09 Hardware Failure 10 to h9 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 99 - Illegal Remote Test I 2-31 TEST 29: PEKFO~~ COMMAND STACK AT 75 IPS THRASHING TEST REQUIK£MENT: TEST DESCRIPTION: TEST 29 a. If a write-type operation is desired, a write enabled scratch tape should be loaded. b. If read-type operation is desired, pre-recorded tape should be loaded. a Test 29 performs the three-level command stack entered by Test 97. If option 01 is entered, toe stack will be repeated until EOT or BOT is detected. If write operation is being performed upon an error, a Backspace, Erase, and Rewrite is performed. If read operation is being performed, any uncorrectable read error will cause the test to fail with a read fault. All functional checks are active throughout the test. Option 2 bypasses read and write errors as in all read/write tests. POSSIBLE TERMINATION CODES: - Test is Successful - IO Check - High Speed Write Error - High Speed Read Error - Noise Detected While Erasing - Hardware Failure to ~9 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 00 03 06 07 08 09 10 2-32 TEST 30: fEST CHECK READ Al'1PLITUDES AT 25 AND 75 IPS wITH TOLERANCE OF + 0.8 VOLTS REQUIRE~!.ENT: Tape snould U~ loaded TEST 30 and not write protected, and should not be near EOT. TEST DESCRIPTION: 'T'C'S'T' .1.u.1. S~QrH;'N("k' u • Test 30 cnecks that read amplitudes at 25 AND 75 ips are 1.5 ~ 0.8 volts. For 25 ips, the minimum read amplifier gain value is deter~ined for each track, such that the peak-to-peak voltage at the analog test point is 1.5 volts. This generates an envelope signal for that track. If. at the end of the test, an envelope is not- detected for any track, a fault is reported. The gain determined for each track is compared to corresponding gain value stored in the back-up memory (determined by Test 31). If the difference for any track is such. that it causes an amplitude difference of 0.8 volts, a fault is reported. All Field Service options are available for the test. The same operation is carried out for 75 ips. uu.LV~. a. Check if the top cover is closed, tape protected, tape is loaded and not at EOT. is not write b. Calculate the minimum read gain values for all tracks for 25 ips as described. c. Display Fault Code 01 if an envelope is not detected track at the end of the test. d. Display Fault Code 02 if the difference in gain, between that determined and the corresponding value stored in the back-up memory for any track, is such that it causes an amplitude difference of 0.8 volts. e. Execute steps b, c, and d for 75 ips. f. Display Termination Code 00 if complete test is successful. in POSSIBL£ TERMINATION CODES: 00 - Test Is Successful 01 - EGC Envelope Fault 02 - EGC Wear Tolerance Fault 10 to 69 - Refer to Fault Code Troubleshooting Procedure NOTE: 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape Write Protected Fault 77 - EOT On EGC Fault Field Service Test 30 is a part of Operator Test 1. 2-33 I Tisr 31: SET UP AND CrlECK READ ru~PLITUDES AT 25 AND 75 IPS T1::ST 31 TEST REQUIREMENT: Tape should be loaded and not write protected, and should not be near EDT. Jumper on the Servo-Control Module back-up memory should be in 1-2 position. TEST DESCRIPTION: Test 31 sets up and checks read amplitudes at 25 and 75 ips, PE mode and GCR mode. For 25 ips, it determines the minimum gain value for each track, in the same manner as described in Test 30, and stores them in the back-up memory. It again determines the minimum gain value for each tr ack and compares it to th e previously stored value. If the difference in gain between the t~o values for any track is such that it causes an amplitude difference of 0.1 volts, the test is repeated. Also, if any fault is detected wh ile determining the minimum gain values, the test is repeated. If, after 5 at tempts, the operat ion is no t successful, a fault is reported. The same operation is carried out for 75 ips, P£ mode and GCR mode~ TEST SEQUENCE: a. Check if the top cover is closed, tape is not protected, tape is loaded, and tape is not at EOT. b. Determine the minimum gain values for 25 ips and store them in the back-up memory. Report a fault if the jumper on the Servo-Control Module back-up memory is not in the 1-2 position. c. Determine the minimum gain values for 25 ips and compare them with the previously stored values. If, for any track, the difference is such that it causes an amplitude difference greater than 0.1 volts, the test is repeated. d. If, while determining the minimum gain values in steps b and c, a fault is detected, the test is repeated. e. If, after five tries, the test is still not successful, terminate the test with Termination Code 78. f. Execute steps b, c, and d for 75 ips. If test is not successful after five tries, display Termination Code 79. g. Display Termination Code 00 if complete test is successful. 2-34 wr i te TEST 31: (Contid) TEST 31 (Cont'd) TEST SEQUENCE (Contld) i1 • Ex e cut est e ps b, c, and d for 2 5 ips, GCR mod e . 1ft est is not successful after five tries, display Termination Code 80. i. Execute steps b, c, and d for 75. ips, is not Code 81. successful after five trIes, ~CR mode. dIsplay ~f t 7st TermInatIon POSSIBLE TERMINATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape Write Protected Fault 74 - EEPROM Not ~rite Enabled 78 - EGC Low Speed Set-Up Failure 79 - EGC High Speed Set-Up Failure 80 - EGC Low Speed GCR ·Set-Up Failure 81 - EGC riigh Speed GCR Set-Up Failure 95 - Attempt to Loop on Test 99 - Illegal Remote Test NOTE 1: After completing the test, replace the jumper on the Servo-Control Module back-up memory from the 1-2 position to the 2-3 position before powering down the TU8l/TA8l. NOTE 2: Loop on test option is not permitted with tnis test. I 2-35 TEST 32: Crl.ECK READ Al1PL ITUDES AT 25 AND 75 IPS TEST 32 TEST REQU IREMENT: Tape should be loaded and pre-written with all lis, and should not be near EOT (see Test 39 or 40). rEST DESCRIPTION: Test 32 checks that read amplitudes at 25 and 75 ips are 1.5 + 0.3 volts, with pre-written tap e 0 fall l' Th i s t est iss i mil a I' to Test 30 except that it requires pre-written tape and the tolerance value is + 0.3 volts instead of 0.8 volts. All Fiefd Service options are available for the test. s. POSSIBLE TE~~INATION CODES: 00 - Test Is Successful 01 - .EGC Envelope Fault 02 - EGC Wear Tolerance Fault 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 77 - EOT On EGC Fault 2-36 TeST 33: SET UP READ fu~PLITUDES AT 25 IPS TEST 33 rEST ReQUIREMENT: Tape ShOU10 be loaaea and not write protected, and should not be near EOT. Jumper on the Servo-Control Module back-up memory should be in the 1-2 position. TEST DESCRIPTION: Test 33 determines and stores the read gains at 25 ips. This test is similar to Test 31 except it is done only at 25 ips, and wnenever a fault is detected, the test is terminated and the fault is reported. POSSIBLE TERMINATION CODES: 00 - Test Is Successful 01 - EGC Envelope Fault 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape write Protected Fault 73, 74 - Back Up Memory Not Write Enabled 75, 76 - Bad Back Up Memory 77 - EOT On EGC Fault 95 - Attempt to Loop on Test 99 - Illegal Remote Test NOTE 1: After completing the test, replace the jumper on the Servo-Control Module back-up memory from the 1-2 position to the 2-3 position before powering down the TU8l/TA8l. t~OTE Loop on test option is not permitted with this test. 2: I 2-37 TEST 34: SET UP READ &~PLITUDES AT 75 IPS TEST 34 TEST REQUIREMENT: Tape should be loaded and not write protected, and should not be near EOT. Jumper on the Servo-Control Module back-up memory should be in the 1-2 position. rEST DESCRIPTION: Test 34 determines and stores the read gains at 75 ips. This test is similar to Test 31 except it is done only at 75 ips, and whenever a fault is detected, the test is terminated and the fault is reported. POSSIBLE TERMINATION CODES: 00 - Test Is Successful 01 - EGC Envelope Fault 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - rape Write Protected Fault 73, 74 - Back Up Memory Not Write Enabled 75, 76 - Bad Back Up Memory 77 - EaT On EGC Fault 95 - Attempt to Loop on Test 99 - Illegal Remote Test NOTE 1: After completing the test, replace the jumper on the Servo-Control Module back-up memory from the 1-2 position to the 2-3 position before powering down the TUal/TAB1. NOTE 2: Loop on test is not permitted with tnis test. 2-38 TEST 37: SET UP VELOCITY CORRECTION MULTIPLIER TEST 37 TEST REQUIREMENT: Tape should not be threaded. Jumper on the Servo-Control Module back-up memory snould be in the 1-2 position. TEST DESCRIPTION: Test 37 sets up the velocity multiplier for the velocity DAC. correction TEST SEQUENCE: a. b. 1'10 vet a k e - up r eel for war d a tab 0 u t 19 ips vel 0 cit Y ( for BOT radius). c. Calculate velocity correction multiplier for velocity DAC. d. Disolav Termination Code multiplier is out of range. if velocity correction e. Stop take-up reel and store multiplier in back-up memory. velocity correction f. Display Termination successful. Code 93 00 if complete test is POSSIBLE TERMINATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 73, 74 - Back Up Memory Not Write Enabled 75, 76 - Bad Back Up Memory 93 - Velocity Correction Multiplier Factor Out of Range 94 - Tape Present Fault 95 - Attempt to Loop on Test 99 - Illegal Remote Test NOTE 1: After completing tne test, replace the jumpers on the Servo-Control Module back-up memory from the 1-2 position to the 2-3 position before powering down the TV81/TA8l. NOTE 2: Loop on test is not permitted with this test. 2-39 I TEST 38: TEST 38 PULSE FILE REEL AT 8 OUNCES TEST REQUIREMENT: Tape (10.5 inch reel) should close to BOT without any loop. TEST DESCRIPTION: This test puts the take-up reel in Stoplock. It pulses the file reel 1n the reverse direction to maintain approximately 8 ounces of tens ion. Manual intervention is required to terminate the test. be threaded TEST SEQUENCE: a. Check if tne top cover is closed and tape is present. b. Put take-up reel in Stoplock. c. Turn on pump. d. Pulse the file reel. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 71 - Invalid Operator Sequence (Tape Loaded Fault) 2-40 TEST 39: wRITE OPTION PATTERN IN PE MODE TO EaT AT 25 IPS TEST 39 TEST R£QUIRMENT: Tape should be loaded and not write protected. TEST DESCRIPTION: Test 39 writes tape with option pattern in PE at 25 ips to EDT. At EDT, tape is rewound to BOT. Pattern options are available for the test. Options available are: ~ode 00 - All ones data frequency pattern 01 - One-half frequency data pattern TEST SEQUENCE: a. Check if the top cover is closed. b. Check if tape is loaded and not write protected. c. Wri te option pattern in PE mode to EDT at 25 ips. d. Rewind to BOT. e. Repeat test from step c. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape write Protected Fault I 2-41 TEST 40: wRITE OPfION PATTERN IN PE MODE TO eOT AT 75 IPS TeST REQUIRMENT: TEST DESCRIPTION: TEST 40 Tape should be loaded and not write protected. Test 40 writes tape with option pattern in PE at 75 ips to EOT. At EOT, it is rewound to BOT. Pattern options are available for the test. Options available are: ~ode 00 - All ones data frequency pattern 01 - One-half frequency data pattern TEST SEQUENCE: a. b. c. d. e. Cneck if the top cover is closed. Cneck if tape is loaded and not write protected. Write option pattern in PE mode to EOT at 75 ips. Rewind to BOT. Repeat test from step c. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troublesnooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape Write Protected Fault TEST 41: STOPLOCK TAKE-UP REEL TEST 41 fEST REQUIREMENT: Tape should not be loaded. TEST DESCRIPTION: Test 41 checks the stoplock mode of the take-up reel servo. Manual intervention is required to terminate the test. TEST SEQUENCE: a. b. Check if the top cover is closed. Put take-up reel servo in stoplock mode. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 71 - Invalid Operator Sequence (Tape Loaded Fault) 2-42 fEST 42: ENABLE TENSION SERVO TEST REQUIREMENT: Tape snould be threaded. Tape slack should be Servo to be enabled. TEST DESCRIPTION: TEST 42 removed to allow File Test 42 allows tape tension to be checked via the tension servo. It produces 8 ounces of tension by enabling tension servo. TEST SEQUENCE: a. Check if the top cover is closed. to step d. b. Take up slack in tape by slowly moving take-up reel in reverse direction until tension is reached. c. Enable tension servo operation at 8 ounces. d. If tape is absent, go If tape is pulled out of tape path, Code 00. display Termination POSSIBLE TERMINATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 71 - Invalid Operator Sequence (Tape Loaded Fault) fEST 43: TEST 43 TURN ON PUMP TEST REQUIRE!1ENT: Tape should not be loaded. TEST DESCRIPTION: Test 43 turns on the pump. Manual intervention is required to terminate test. TEST SEQUENCE: a. Check if the top cover is closed and tape is not loaded. b. Turn on pump. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 71 - Invalid Operator Sequence (Tape Loaded Fault) 2-43 I TEsr 44: FAST FORWARD TO EOT TEST 44 TEST REQUIREMENT: Tape should be loaded. TEST DESCRIPTION: Test 44 moves tape forward at rewind speed to EOT. fEST SEQUENCE: a. ChecK if tne top cover is closed and tape is loaded. b. Gradually increase speed and then maintain rewind speed. c. wait until EOT is detected. d. Stop motion and display Termination Code 00. POSSIBLE TERMINATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 2-44 TEST 45: TEST 45 REFRESH DAC SCOPE LOOP TEST REQUIREMENT: Tape should not be loaded. TEST DESCRIPTION: Test 45 exercises the Refresh DAC on the Servo-Control Module. If Refresh DAC is operational, a triangle waveform of 35 ms period will be observed on the scope. Manual termination is required to terminate the test. fEST SEQUENCE: a. Cneck if the top cover is closed. b. 9utpul zero voltage at TP 14 through lncr ease it by 20 mv at every (approximate) until it reaches 5 volts. c, Decrease output at Refresh DAC by 20 mv at every microseconds (approximate) until it reaches 0 volt. Re fresh DAC, and 60 microseconds 60 J d. Go to step b. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 71 - Invalid Operator Sequence (Tape Loaded Fault) I 2-45 TEST 46: VELOCITY DAC SCOPE LOOP TEST 46 TEST REQUIREMENT: Tape should not be loaded. T£ST DESCRIPTION: Test 46 exercises the Velocity DAC on the Servo-Control Module. If Velocity DAC is operational, a triangle waveform of 35 ms period will be observed on the scope. Manual termination is required to terminate the test. TEST SEQUENCE: a. Check if the top cover is closed. b. Output zero voltage at Velocity DAC, and increase it by 20 mv at every 60 microseconds (approximate) until it reaches 6.9 volts. c. Decrease output at Velocity DAC by 20 mv at every 60 microseconds (approximate) until it reaches 0 volt. d. Go to step b. POSSIBLE TERMINATION CODES: 10 to fig - Refer to Fault Code Troubleshooting Procedure 71 - Invalid Operator Sequence (Tape Loaded Fault) 2-46 Tt:ST 47: SERVO-CONTROL MIC~OPROCESSOR OUTPUTS SCOPE LOOP TEST 47 TEST REQUIREMENT: Tape should not be loaded. TEST DESCRIPTION: Test 47 generates a pulse of 50 microseconds every 5 ms on eacn of the addressable outputs of tne Servo-Control Module. Manual intervention is required to terminate the test. a. Check if the top cover is closed and tape is not present. b. Generate a 50 microsecond pulse every 5 ms on each of the addressable outputs of Servo-Control microprocessor. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 94 - Tape Present Fault 99 - Illegal Remote Test I 2-47 TEST 48: SET UP PUMP POWER-DOWN TIMER TEST 48 TEST REQUIREMENf: Tape should be unloaded. Jumper Wl on backup memory should be in the 1-2 position. TEST DESCRIPfION: Test 48 enables the power-down timer for one minute if no tape motion has occurred. NOTE Return jumper to 2-3 position. POSSIBLE TERMINATION CODES: 00 - Test Is Successful 71 - Invalid Operator Sequence (Tape Loaded Fault) 73, 74 - Backup Memory is not write enabled 75, 76 - Bad Backup Memory NOTE: fo disable pump power-down timer and high temperature sensors, execute test 37. 2-48 TEsr 49: TEST 49 SET UP TU81/TA81 MODE TESf REQUIREMENT: Tape should be unloaded. Jumper WI on backup memory should be in the 1-2 position. TEST DESCRIPTION: Test 49 enables auto load on power up, displays the unit identifier, and sets up the power-down timer for one minute if no tape motion has occurred. Return jumper to 2-3 position. POSSIBLE TERMINATION CODES: 00 - Test is Successful 71 - Invalid Operator Sequence (Tape Loaded Fault) 73, 74 - Backup Memory Is Not Write Enabled 75, 70 - Bad Backup Memory NOTE: To disable test 37. everything enabled by test 49, execute I 2-49 TEST 50: TEST 50 ENABLE AUTO LOAD 'fEST REQUIREMENT: Tape should be unloaded. Jumper Wl on backup memory should be in the 1-2 position. TEST DESCKIP'fION: Test 50 enables auto load on power up. This test does not affect the power down timers. NOTE Return ju~per to 2-3 position. POSSIBLE TERMINATION CODES: 00 - Test is Successful 71 - Invalid Operator Sequence (Tape Loaded Fault) 73, 74 - Backup Memory Is Not Write Enabled 75, 76 - Bad Backup Memory 99 - Illegal Remote Test NOTE: To disable power-on auto load, execute test 37. 2-50 TEST 52: WKITE OPTION PATTERN IN GCR L10DE TO EDT AT 25 IPS TEST 52 TEST REQUIRMENT: Tape should be loaded and not write protected. TEST DESCRIPTION: Test 52 writes tape with option pattern in GCR mode at 25 ips to EOT. At EOT, tape is rewound to BOT. Pattern options are available for the test. Option available are: 00 - All ones data frequency pattern 01 - One-half frequency data pattern 02 - One-third frequency data~pattern TEST SEQUENCE: a. Check if the top cover is closed. b. Check if tape is loaded and not write protected. c. Write option pattern in GCR mode to EOT at 25 ips. d. Rewind to BOT. e. Repeat test from step c. POSSIBLE TE~~INATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape Write Protected Fault I 2-51 TEST 53: ~RITE OPTION PATTERN IN GCR MODE TO EOT AT 75 IPS TEST 53 TEST REQUIRMENT: Tape should be loaded and not write protected. TEST DESCRIPT ION: Tes t 40 wr i tes tape wi th opt ion pa ttern in GCR mod eat 7 5 ips toE 0 T . AtE OT, i t i s rewound to BOT. Pattern options are available for the test. Options available are: 00 - All ones data frequency pattern 01 - One-half frequency data pattern 02 - One-third frequency data pattern TEST SEQUENCE: a. b. c. d. e. Check if the top cover is closed. Check if tape is loaded and not write protected. Write option pattern in GCR mode to EOT at 75 ips. Rewind to BOT. Repeat test from step c. POSSIBLE TERMINATION CODES: 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape write Protected Fault 2-52 TEST 55 DRIVE INTERNAL DIAGNOSTIC TEST 55: TEST REQUIREMENT: None. Tt:ST DESCRIPTION: Test 55 checks out the internal hardware of the drive. TEST SEQUENCE: a. b. c. d. e. I..JII; I..Q is not loaded. Check if +-h'" +-"'~e Cneck the drive s Functional PROM Checksum. 17 •• +-1. . .... +-..:,.. DO{"\M " ...... """',.., I,,.. I..ll II; UL.l.VII; ;::, vLJII;\..l\.;::'UW. vut:\".1.\. U.l. C1 5 ;::'I...l.\". .c Check the Programmable Timer #1. Cneck tne Programmable Timer # 2. (*1,- _ ..... ~ ~_~ ,..I~ n.:""".._~ L1V ,,"V1.-j, t ,"" POSSIBLE TERl.'1INATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troublesnooting Procedure I 2-53 TEST 56: FORMATTER INTeRNAL DIAGNOSTIC TEST 56 TEST REQUIREMENT: None. TEST DeSCRIPTION: Test 56 cnecks out toe internal hardware of the formatter. It does not check controller interface or device interface hardware. TEST SEQUENCE: a. Check out write hardware. b. Check out read/ wr i te interface hardware. c. CheCK out read il ardware. d. Check out hardware used to write or read a data block. e. Check out VFO's for both speeds and densities. POSSIBLE TERMINATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 2-54 TEsr 57: INTERFACE INTERNAL DIAGNOSTIC TEST 57 TEST REQUIREMENT: Disconnect the cable from the I/O interface. rEST DESCRI PTION: Tes t 57 cn eck s ou t the internal h a rdwar e 0 f the TMSCP/TU81 or STI/TA8l board. It does not check the interface between itself and the formatter. rEST SEQUENCE: a. Check the PROM Checksum. b. Check out internal hardware. POSSIBLE TERMINATION CODES: 00 - Test is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure I 2-55 T£ST 58: LOOP WRITE-TO-READ [HRU DRIVE INTERFACE TEST 58 TEST REQUIREMENT: None. fEST DESCRI PTION: Tes t 58 loops da ta through th e dr i ve interface. The formatter will write 2K byte records, incrementing data patterns for each speed and density. TEST SEQUE~CE: a. 'vir i te 10 records in low speed PE mode. b. write 10 records in t1 igh speed PE mode. c. Vir i te 10 records in low speed GCR mode. d. Write 10 records in high speed GCR mode. POSSIBLE TERMINATION CODES: 00 - Test is Successful 04 - Low Speed write Error 06 - High Speed Write Error 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 2-56 rEST 59: LOOP wRITE-fa-READ THRll READ/WKITE TEST 59 TEST REQUIREMENT: Tape unthreaded. TEST DESCRIPTION: Test 59 loops data through the read/write in the drive. The formatter will write 2K byte records, incrementing data patterns for low speed GCR mode only. rt:ST SEQUENCE: ." Q. records in low GCR mode . POSSIBLE TE&~INATION CODES: 00 - Test is Successful 04 - Low Speed Write Error 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 94 - Tape Threaded Fault I 2-57 fEST 60: LOOP ~RITE-TO-READ fHRU FO~1AfTER Tt:ST 60 T£ST REQUIREMENT: None. fEST DESCRIPTION: Test 60 loops data through the for:natter. The formatter will write 2K byte records, incrementing data pattern~ for each speed and density. TEST SEQUENCE: a. vlri te 10 records in low speed PE mode. b. Write 10 records in high speed PE mode. c. vlri te 10 records in low speed GCR mode. d. Write 10 records in high speed GCR mode. POSSIBLE TERMINATION CODES: 00 - Test is Successful 56 - Formatter/Drive Communication Fault 04 - Low Speed write Error 06 - dign Speed write Error 09 - Hardware Failure 2-58 fEST 61: TEST 61 fAKE-UP MOTOR AND PO~ER AMP FULL CAPABILITY DETECTION TEST TEsr REQUIKEMENT: Tape should not be threaded. TEST DESCRIPTION: Test 61 checks out whether take-up motor performance is wi tn in range or not. It also checks out whether take-up section of the power amp is capable of delivering full current or not. TEST SEQUENCE: a. Check if the top cover is closed and tape is absent. D. Apply diagnostic lines to move take-up motor in forward direction from 0 to 75 ips, and measure time it requires to ramp-up. Stop take-up motor. c. Calculate motor constant from this data. d. If motor constant is within range, go to step e. If motor constant is out of range the first time, repeat steps band c. Otnerwise, display Termination Code 84. e. Apply full current to move take-up motor in forward direction from 0 to 75 ips, and measure time it requires to ramp-up. Stop take-up motor. f. If power amp is not capable of delivering full current in forward direction, flag a fault, otherwise, go to step h. g. If fault is the first time, repeat otnerwise, display Termination Code 82. h. Apply full current to move take-up motor In reverse direction from 0 to 75 ips, and illeasure time it requires to ramp-up. Stop take-up motor. i. If power amp is not capable of delivering full current in reverse direction, flag a fault, otherwise, go to step k. j. If fault is the first time, repeat otherwise, display Termination Code 82. k. Display Termination completion of test. Code 00 to steps steps indicate e and hand i, successful POSSIBLE TER..~INArIOH CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 82 - Take-Up Power Amp Fault 84 - Take-Up Motor/Tach Fault 94 - Tape Present Fault 2-59 f, I rEsr 62: TAK~-UP FIdE TACH FAULT DETECTION TEST 62 TEST REQUIREMENT: Tape should not be threaded. TEsr DESCRIPTIO~: Test 62 checks that toe distance between two consecutive quarter tachs (derived from fine line tacns at the take-up motor) is within tolerable limits. rEST SEQUENCi: a. Check if the top cover is closed and tape is absent. b. Ramp up to 4 ips. c. Check if distance between two consecutive quarter tachs is within tolerable limits. d. If, after five tries, at least once, the distance between two consecutive quarter tachs is within limits, go to step f. e. Display Termination Code 96. f. Check that the distance between all consecutive quarter taChs is within tolerable limits. g. If distance between any two consecutive quarter tachs is not within limits, report fault, otherwise, go to step i. h. Repeat steps e and f. If the error times, display Termination Code 84. i. Display Termination completion of test. Code 00 to is detected ind icate successful POSSIBLE TERMINATION CODES: 00 - Test Is Successful 10 to 69 - Refer to Fault Code Troubleshooting Procedure 84 - Take-Up Motor/Tach Fault 94 - Tape Present Fault 95 Formatter Interrupt received while test in progress. 96 - Servo Loop Fault 2-60 five TEST 64: AUTOMATIC wRITE CURRENT LEVEL ADJUSTMENT TEST REQUIREMENT: TEST 64 Execute tnis test with a 3L1777 or equivalent tape (or the most frequently used tape at the site) with a minimum accumulation of 10 full reel passes on a transport. The recommended coercivity is 310 + 5 oersteds. Discard a tape showing signs of oxide breakdown (identifiable by contamination of ~agnetic head). Clean the magnetic head. Load a qualified write-enabled tape. Move jumper w-l on the Servo-Control Module to the 1-2 position. TEST DESCRIPTION: fest 64 determines the optimum write current level for all nine tracks. The write current levels are determined for 25 ips PE, 25 ips GCR, 75 ips PE, and 75 ips GCR-. The values are stored in backup memory. TEST SEQUENCE: a. Enter Test 64. Press EXECUTE switch. b. Test runs to completion. c. Execute Test 31. d. Before turning power off, move jumper Servo-Control Module to the 2-3 position. w-l on the I L-6l TEST 64 (Cont'd) TEsr 64: (Cont'd) POSSIBLE TERMINATION CODES: 00 - Test is Successful 01 - Read Envelope Fault 10 to 69 - Refer to Fault Code Troubleshooting Procedure 70 - Invalid Operator Sequence (Tape Not Loaded Fault) 72 - Tape Write Protected Fault 73, 74 - Backup Memory Jumper W-l not in 1-2 position 75, 7~ - Bad Backup Memory 80 - PE 25 IPS Setup Fault 81 - PE 75 IPS Setup Fault 82 - GCR 25 IPS Setup Fault 83 - GCR 75 IPS Setup Fault 87 - Write Currents Inconsistent Fault 88 - Optimized Write Current Exceeds Maximum 2-62 TEST 70: ENABLE/DISABLE ASCII TERMINAL ~RROR PRINTOUT ON TEST 70 TEST REQUIREMENT: None. TEST DESCRIPTION: Test 70 enables/disables error reporting to the ASCll terminal. By default, the error reporting to the ASCll terminal is whenever an error occurs during normal TU8l operation is disabled. Option 00 disables error printout on ASCll terminal. Option 01 enables error printout on ASCll terminal. POSSIBLE rE&~INATION CODES: 00 - Test is Successful 10 to 69 = Refers to Fault Code Troubleshooting Procedure I 2-63 TEST 82: ~NABLE LOW TENSION MODE TEST 82 TEST REQUIREME1~T: Tape should be unloaded. Jumper wI on backup memory snould be in tne 1-2 position. TEST DESCRIPTION: Test 82 enables the low tension mode of operation. After running test 82, the STU drive can go into low tension mode, if required. (Stiction tapes used under high temperature/humidity conditions may require low tension mode to meet read/write error requirements.) NOTE Return jumper to 2-3 position after test. TEST OPTIONS: 00 - Enable low tension mode of operation. 01 - Enable low tension mode of operation, and cause unit ID to flash if low tension mode is entered. 02 - Disable low tension mode. POSSIBLE TERMINATION CODES: 00 - Test is Successful 71 - Invalid Operator Sequence (Tape Loaded Fault) 73, 74 - Backup Memory Is Not Write Enabled 75, 76 - Bad Backup Memory NOTE If option 01 is selected and low tension mode is entered, unit identification will flash unt i 1 tape is unloaded and RESET is pressed. The drive exits low tension mode after every REWIND command. To disable low tension mode, execute Test 82 Option 02, or Test 37. 2-64 TEST 91: TEST 91 FUNCTIONAL FAULT DETECTION TEST feST REQUIRMENT: A write enabled scratch tape should be loaded. TEST DESCRIPTION: Test 91 performs those functions that the rU8l/TA81 would normally perform during functional operations. Unit halts with the appropriate error code, if a functional fault occurs. TEST SEQUENCE: a. If tape is unloaded, tape. then load tape. b. write 100 blocks NOTE 1). c. Space Reverse, Erase, and write File Mark (check for file mark detected). Space Reverse and check for file mark detected. Read Forward and again check for file mark detected. d. Read Reverse 100 blocks at 25 ips start/stop. e. Read Forward 100 blocks at 25 ips start/stop. f • Repeat steps b thru e at 25 ips streaming. g. Repeat steps b thru e at 75 ips streaming. h. Write 10 bloCkS at 75 ips "tnrashing" (see NOTE 2) . i . Read Reverse 10 blocks at 75 ips "thrashing". j . Read Forward 10 blocks at 75 ips "thrashing". k. Rewind. 1. Read Forward 300 blocks at 75 ips streaming. file mark detected at blocks 100, 200, and 300. ffi. Rewind. n. Repeat steps b thru e for GCR mode wnere Read Reverse is specified. o. Write to EOT in GCR ~ode at 75 ips streaming (see NOTE 1). in PE mode at 25 2-65 Otherwise, rewind ips start/stop (see and Check for Space Reverse I TEST 91: (Cont' d) TEST 91 (Cont'd) TEST SEQUENCE (Cont'd) p. Space reverse 1000 records at (reposition after every 250 records). 75 q. Write to EaT in GCR mode at 25 ips streaming. r. Rewind. ips streaming 1. Data blocks written are 2K bytes with an incrementing pattern starting at zero for each block. NOT E 2. Da t a b 10 c k s WI' itt en are 256 by t e s wit han incrementing pattern starting at zero for each block. ~OTE POSSIBLE TERMINATION CODES: 00 - Test is Successful 01 - Read Envelope Fault 02 - Read Amplitude Range Fault 03 - ID Check 04 - Low Speed Write Error 05 - Low Speed Read Error 06 - High Speed Write Error 07 - High Speed Read Error 08 - Noise In IBG 09 - Hardware Failure 10 to 69 - Refer to Fault Code Troubleshooting Procedure 2-66 TEST 97: KEAD/ wrRI TE C01\f1\lAND STACK TEST 97 TEST REQUIREMENT: None. TEST DESCRIPTION: Test 97 allows Field Service Representative to set up a command stack using READ, WRITE, SPACE, and ERASE commands. Up to three commands can be entered. The commands available are: READ FORWARD - 00 READ REVERSE - 80 SPACE FORWARD - 08 SPACE REVERSE - 88 WRITE PE - 40 ERASE - 58 .NO-OP - 70 or 01 (included to allow ilin-place" analysis) wRITE FILE MARK PE - 50 REWIND - 74 WRITE GCR - 41 WRITE FILE MARK GCR - 51 TEST SEQUENCE: a. Set up for test 97 and depress EXECUTE. b. Display goes to "00" - enter first desired command using STEP and TEST (to multiply by 10) and depress EXECUTE. c. Repeat step b two more times to enter second and third commands. d. After third entry, display goes to "00" and indicator will illuminate. Test is terminated. fault POSSIBLE TER11IriATION CODES: 99 - Illegal Remote Test NOTE: Test 28 and Test 29 cause execution of the commands set up in this Command Stack Routine. 2-67 I Digital Equipment Corppration • Shrewsbury, MA 01545
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